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Volume 6: Turbomachinery, Parts A, B, and C

Turbomachinery

General Interest

A Study of Modest CFD Models for the Design of an Annular Diffuser With Struts for Swirling Flow

G. K. Feldcamp, A. M. Birk

GT 2008; 1-10https://doi.org/10.1115/GT2008-50605

Abstract

View Articletitled, A Study of Modest CFD Models for the Design of an Annular Diffuser With Struts for Swirling Flow

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Topics: Computational fluid dynamics , Design , Diffusers , Swirling flow , Pressure , Struts (Engineering) , Turbulence , Flow (Dynamics) , Flow visualization , Probes

Experimental Study of Oblong Exhaust Ejectors With Multi-Ring Oblong Entraining Diffusers

Qi Chen, A. M. Birk

GT 2008; 11-21https://doi.org/10.1115/GT2008-50696

Abstract

View Articletitled, Experimental Study of Oblong Exhaust Ejectors With Multi-Ring Oblong Entraining Diffusers

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Topics: Diffusers , Ejectors , Exhaust systems , Pressure , Temperature , Flow (Dynamics) , Nozzles , Annulus , Cooling , Temperature distribution

Improving the Performance of a Bent Ejector With Inlet Swirl

Asim Maqsood, A. M. Birk

GT 2008; 23-32https://doi.org/10.1115/GT2008-51209

Abstract

View Articletitled, Improving the Performance of a Bent Ejector With Inlet Swirl

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Topics: Ejectors , Exhaust systems , Flow (Dynamics) , Gas turbines , Geometry , Nozzles , Pressure , Testing , Ventilation

Axial Flow Fan and Compressor Aerodynamics

The Stability-Limiting Flow Mechanisms in a Subsonic Axial-Flow Compressor and Its Passive Control With Casing Treatment

Xingen Lu, Junqiang Zhu, Chaoqun Nie, Weiguang Huang

GT 2008; 33-43https://doi.org/10.1115/GT2008-50006

Abstract

View Articletitled, The Stability-Limiting Flow Mechanisms in a Subsonic Axial-Flow Compressor and Its Passive Control With Casing Treatment

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Topics: Axial flow , Compressors , Flow (Dynamics) , Passive control , Stability , Flow instability , Rotors , Blades , Aircraft engines , Clearances (Engineering)

Stability Enhancement and Hysteresis Improvement of Axial Flow Fan by Discrete and Distributed Tip Injection Schemes

Bhaskar Roy, Subrahmanyam Veraarapu

GT 2008; 45-56https://doi.org/10.1115/GT2008-50075

Abstract

View Articletitled, Stability Enhancement and Hysteresis Improvement of Axial Flow Fan by Discrete and Distributed Tip Injection Schemes

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Topics: Axial flow , Stability , Rotors , Chords (Trusses) , Gates (Closures) , Aerospace engineering , Compressors , Flow (Dynamics)

Tip Clearance Vortex Oscillation, Vortex Shedding and Rotating Instabilities in an Axial Transonic Compressor Rotor

Chunill Hah, Jo¨rg Bergner, Heinz-Peter Schiffer

GT 2008; 57-65https://doi.org/10.1115/GT2008-50105

Abstract

View Articletitled, Tip Clearance Vortex Oscillation, Vortex Shedding and Rotating Instabilities in an Axial Transonic Compressor Rotor

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Topics: Clearances (Engineering) , Compressors , Oscillations , Rotors , Vortex shedding , Vortices , Flow (Dynamics) , Blades , Pressure , Annulus

Interaction of Rotor and Casing Treatment Flow in an Axial Single-Stage Transonic Compressor With Circumferential Grooves

Martin W. Mu¨ller, Christoph Biela, Heinz-Peter Schiffer, Chunill Hah

GT 2008; 67-78https://doi.org/10.1115/GT2008-50135

Abstract

View Articletitled, Interaction of Rotor and Casing Treatment Flow in an Axial Single-Stage Transonic Compressor With Circumferential Grooves

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Topics: Compressors , Flow (Dynamics) , Rotors , Vortices , Blades , Leakage , Pressure , Computer simulation , Data acquisition , Fluids

Water Film Formation on an Axial Flow Compressor Rotor Blade

Theoklis Nikolaidis, Periclis Pilidis, J. A. Teixeira, V. Pachidis

GT 2008; 79-87https://doi.org/10.1115/GT2008-50137

Abstract

View Articletitled, Water Film Formation on an Axial Flow Compressor Rotor Blade

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Topics: Axial flow , Blades , Rotors , Water , Compressors , Computer software , Flow (Dynamics) , Gas turbines , Inlet guide vanes , Torque

Measured and Predicted Performance of a High Pressure Ratio Supersonic Compressor Rotor

Allan D. Grosvenor, David A. Taylor, Jonathan R. Bucher, Michael J. Aarnio, Paul M. Brown, Robert D. Draper, Shawn P. Lawlor

GT 2008; 89-100https://doi.org/10.1115/GT2008-50150

Abstract

View Articletitled, Measured and Predicted Performance of a High Pressure Ratio Supersonic Compressor Rotor

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Topics: Compressors , High pressure (Physics) , Rotors , Compression , Pressure , Shock (Mechanics) , Blades , Boundary layers , Carbon capture and storage , Design

Prediction of Evaporative Effects Within the Blading of an Industrial Axial Compressor

Charles Matz, Wolfgang Kappis, Giovanni Cataldi, Gerd Mundinger, Stefan Bischoff, Eivind Helland, Matthias Ripken

GT 2008; 101-114https://doi.org/10.1115/GT2008-50166

Abstract

View Articletitled, Prediction of Evaporative Effects Within the Blading of an Industrial Axial Compressor

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Topics: Airfoils , Compression , Compressors , Drops , Flow (Dynamics) , Gas turbines

Breakdown of the Tip Clearance Vortex in a Rotor Equivalent Cascade and in a Single-Stage Low-Speed Compressor

Henner Schrapp, Udo Stark, Horst Saathoff

GT 2008; 115-129https://doi.org/10.1115/GT2008-50195

Abstract

View Articletitled, Breakdown of the Tip Clearance Vortex in a Rotor Equivalent Cascade and in a Single-Stage Low-Speed Compressor

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Topics: Cascades (Fluid dynamics) , Clearances (Engineering) , Compressors , Rotors , Vortices , Flow (Dynamics) , Design , Fluids , Momentum , Pressure

Application of Detached Eddy Simulation to a Subsonic Compressor Rotor

Chunwei Gu, Fan Feng, Xuesong Li, Meilan Chen

GT 2008; 131-138https://doi.org/10.1115/GT2008-50203

Abstract

View Articletitled, Application of Detached Eddy Simulation to a Subsonic Compressor Rotor

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Topics: Compressors , Eddies (Fluid dynamics) , Rotors , Simulation , Leakage , Blades , Leakage flows , Vortices , Flow (Dynamics) , Separation (Technology)

Active Flow Control in a Single-Stage Axial Compressor Using Tip Injection and Endwall Boundary Layer Removal

B. Dobrzynski, H. Saathoff, G. Kosyna, C. Clemen, V. Gu¨mmer

GT 2008; 139-148https://doi.org/10.1115/GT2008-50214

Abstract

View Articletitled, Active Flow Control in a Single-Stage Axial Compressor Using Tip Injection and Endwall Boundary Layer Removal

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Topics: Boundary layers , Compressors , Flow control , Flow (Dynamics) , Rotors , Stators , Axial flow , Blades , Flow visualization , Fluids

Boundary Layer Control in a Compressor Cascade Using Distributed Suction

Utpal Chakraborthy, A. M. Pradeep

GT 2008; 149-155https://doi.org/10.1115/GT2008-50225

Abstract

View Articletitled, Boundary Layer Control in a Compressor Cascade Using Distributed Suction

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Topics: Boundary layers , Cascades (Fluid dynamics) , Compressors , Suction , Pressure , Blades , Flow (Dynamics) , Diffusion (Physics) , Momentum , Reynolds number

Unsteady Pressure Measurement in a Single Stage Axial Transonic Compressor Near the Stability Limit

Christoph Biela, Martin W. Mu¨ller, Heinz-Peter Schiffer, Carsten Zscherp

GT 2008; 157-165https://doi.org/10.1115/GT2008-50245

Abstract

View Articletitled, Unsteady Pressure Measurement in a Single Stage Axial Transonic Compressor Near the Stability Limit

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Topics: Compressors , Pressure measurement , Stability , Pressure , Vortices , Leakage , Probes , Rotors , Design , Electromagnetic spectrum

An Entropy Based Evaluation of Efficiency of a Transonic Compressor Rotor With Water Injection

Istvan Szabo, Mark G. Turner

GT 2008; 167-180https://doi.org/10.1115/GT2008-50248

Abstract

View Articletitled, An Entropy Based Evaluation of Efficiency of a Transonic Compressor Rotor With Water Injection

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Topics: Compressors , Entropy , Rotors , Underground injection , Compression , Flow (Dynamics) , Energy dissipation , Computational fluid dynamics , Flow control , Simulation

Design of a Highly-Loaded Four-Stage Low-Speed Research Compressor

C. Clemen, H. Schrapp, V. Gu¨mmer, R. Mu¨ller, M. Ku¨nzelmann, K. Vogeler

GT 2008; 181-191https://doi.org/10.1115/GT2008-50254

Abstract

View Articletitled, Design of a Highly-Loaded Four-Stage Low-Speed Research Compressor

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Topics: Compressors , Design , Blades , Pressure , Probes , Axial flow , Flow (Dynamics) , Flow measurement , Inlet guide vanes , Nozzle guide vanes

Transonic Fan Tip-Flow Features Revealed by High Frequency Response Over-Tip Pressure Measurements

Hyoun-Woo Shin, William Solomon, Aspi Wadia

GT 2008; 193-201https://doi.org/10.1115/GT2008-50279

Abstract

View Articletitled, Transonic Fan Tip-Flow Features Revealed by High Frequency Response Over-Tip Pressure Measurements

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Topics: Flow (Dynamics) , Frequency response , Pressure measurement , Blades , Computational fluid dynamics , Locks (Waterways) , Boundary layers , Leakage flows , Physics , Pressure

Influence of Gap Between Casing and Variable Stator Blade on Axial Compressor Performance

Beat Ribi, Michael P. Meyer

GT 2008; 203-217https://doi.org/10.1115/GT2008-50301

Abstract

View Articletitled, Influence of Gap Between Casing and Variable Stator Blade on Axial Compressor Performance

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Topics: Blades , Compressors , Stators , Calibration , Computational fluid dynamics , Chords (Trusses) , Geometry , Leakage , Rotors , Turbochargers

Numerical and Experimental Investigation on a Low-Speed Compressor Cascade With Circulation Control

S. Fischer, H. Saathoff, R. Radespiel

GT 2008; 219-228https://doi.org/10.1115/GT2008-50302

Abstract

View Articletitled, Numerical and Experimental Investigation on a Low-Speed Compressor Cascade With Circulation Control

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Topics: Cascades (Fluid dynamics) , Compressors , Flow (Dynamics) , Pressure , Stators , Wind tunnels , Airfoils , Blades , Design , Geometry

The Impact of the Vortex Design Method on the Stall Behavior of Axial Flow Fan and Compressor Rotors

Ja´nos Vad, Csaba Horva´th

GT 2008; 229-238https://doi.org/10.1115/GT2008-50333

Abstract

View Articletitled, The Impact of the Vortex Design Method on the Stall Behavior of Axial Flow Fan and Compressor Rotors

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Topics: Axial flow , Compressors , Design , Design methodology , Rotors , Stall behavior , Turbomachinery , Vortices

Effects of Sand Ingestion Through an Axial Fan With Blade Staggering

Adel Ghenaiet

GT 2008; 239-255https://doi.org/10.1115/GT2008-50338

Abstract

View Articletitled, Effects of Sand Ingestion Through an Axial Fan With Blade Staggering

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Topics: Blades , Sands , Particulate matter , Erosion , Flow (Dynamics) , Air flow , Computation , Algorithms , Compressors , Computer simulation

The Primary Discussion of Blade Sections for Application of Helium Compressor

Yu E. Liu, Yufeng Sun

GT 2008; 257-268https://doi.org/10.1115/GT2008-50356

Abstract

View Articletitled, The Primary Discussion of Blade Sections for Application of Helium Compressor

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Topics: Blades , Compressors , Helium , Flow (Dynamics) , Computer simulation , Design , Air compressors , Air flow , Airfoils , Cascades (Fluid dynamics)

Loss Reduction in Compressor Cascades by Means of Passive Flow Control

A. Hergt, R. Meyer, M. W. Mu¨ller, K. Engel

GT 2008; 269-280https://doi.org/10.1115/GT2008-50357

Abstract

View Articletitled, Loss Reduction in Compressor Cascades by Means of Passive Flow Control

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Topics: Compressors , Flow control , Cascades (Fluid dynamics) , Vortices , Generators , Pressure , Flow (Dynamics) , Corners (Structural elements) , Design , Stators

3D Numerical Investigation of Tandem Airfoils for a Core Compressor Rotor

Jonathan McGlumphy, Wing-Fai Ng, Steven R. Wellborn, Severin Kempf

GT 2008; 281-291https://doi.org/10.1115/GT2008-50427

Abstract

View Articletitled, 3D Numerical Investigation of Tandem Airfoils for a Core Compressor Rotor

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Topics: Airfoils , Blades , Compressors , Rotors

Semi-Inverse Design Applied to an Eight Stage Transonic Axial Flow Compressor

Paul Hield

GT 2008; 293-303https://doi.org/10.1115/GT2008-50430

Abstract

View Articletitled, Semi-Inverse Design Applied to an Eight Stage Transonic Axial Flow Compressor

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Topics: Axial flow , Design , Computational fluid dynamics , Airfoils , Blades , Geometry , Rotors , Stators , Boundary-value problems , Clearances (Engineering)

Optimisation of Non-Axisymmetric Endwalls in Compressor S-Shaped Ducts

Edward M. J. Naylor, Cecilia Ortiz Duen˜as, Robert J. Miller, Howard P. Hodson

GT 2008; 305-316https://doi.org/10.1115/GT2008-50448

Abstract

View Articletitled, Optimisation of Non-Axisymmetric Endwalls in Compressor S-Shaped Ducts

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Topics: Compressors , Ducts , Optimization , Struts (Engineering) , Corners (Structural elements) , Design , Geometry , Separation (Technology) , Design methodology , Diffusion (Physics)

Performance Predicting Modeling of Axial-Flow Compressor at Design and Off-Design Conditions

Ali Madadi, Ali Hajilouy Benisi

GT 2008; 317-324https://doi.org/10.1115/GT2008-50550

Abstract

View Articletitled, Performance Predicting Modeling of Axial-Flow Compressor at Design and Off-Design Conditions

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Topics: Axial flow , Compressors , Design , Modeling , Performance characterization , Flow (Dynamics) , Gas turbines , Geometry , Rotors , Stators

A Study of Parameter Selection Principle and Internal Flow Mechanism in a Multi-Stage Low-Reaction Axial Flow Compressor

Songtao Wang, Xiaoqing Qiang, Weichun Lin, Guotai Feng, Zhongqi Wang

GT 2008; 325-333https://doi.org/10.1115/GT2008-50554

Abstract

View Articletitled, A Study of Parameter Selection Principle and Internal Flow Mechanism in a Multi-Stage Low-Reaction Axial Flow Compressor

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Topics: Axial flow , Internal flow , Design , Pressure , Compressors , Boundary layers , Geometry , Suction , Cascades (Fluid dynamics) , Computer simulation

Experiments and Computations on Large Tip Clearance Effects in a Linear Cascade

Richard Williams, David Gregory-Smith, Li He, Grant Ingram

GT 2008; 335-347https://doi.org/10.1115/GT2008-50557

Abstract

View Articletitled, Experiments and Computations on Large Tip Clearance Effects in a Linear Cascade

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Topics: Cascades (Fluid dynamics) , Clearances (Engineering) , Computation , Blades , Compressors , Flow (Dynamics) , Design , Industrial gases , Pressure , Turbines

Internal Losses and Flow Behavior of a Turbofan Stage at Windmill

Dilip Prasad, Wesley K. Lord

GT 2008; 349-361https://doi.org/10.1115/GT2008-50560

Abstract

View Articletitled, Internal Losses and Flow Behavior of a Turbofan Stage at Windmill

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Topics: Flow (Dynamics) , Turbofans , Rotors , Engines , Stators , Mach number , Pressure , Blades , Computer simulation , Drag (Fluid dynamics)

Time Resolved Simulation and Experimental Validation of the Flow in Axial Slot Casing Treatments for Transonic Axial Compressors

Giovanni A. Brignole, Florian C. T. Danner, Hans-Peter Kau

GT 2008; 363-374https://doi.org/10.1115/GT2008-50593

Abstract

View Articletitled, Time Resolved Simulation and Experimental Validation of the Flow in Axial Slot Casing Treatments for Transonic Axial Compressors

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Topics: Compressors , Flow (Dynamics) , Simulation , Design , Pressure , Aerodynamics , Cavities , Channel flow , Computer simulation , Fans

Further Effects of Water Ingestion on Axial Flow Compressors and Aeroengines at Part Speed

John Williams

GT 2008; 375-383https://doi.org/10.1115/GT2008-50620

Abstract

View Articletitled, Further Effects of Water Ingestion on Axial Flow Compressors and Aeroengines at Part Speed

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Topics: Axial flow , Compressors , Water , Surges , Nozzles , Engines , Momentum , Blades , Drops , Plasma spraying

Validation and Calibration of Modern CFD RANS Codes for the Prediction of Transonic Axial-Centrifugal Compressors

Mahmoud L. Mansour, Greg Holbrook, John Gunaraj, Mohamed Qizar, Vikram Mangat

GT 2008; 385-392https://doi.org/10.1115/GT2008-50652

Abstract

View Articletitled, Validation and Calibration of Modern CFD RANS Codes for the Prediction of Transonic Axial-Centrifugal Compressors

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Topics: Calibration , Compressors , Computational fluid dynamics , Reynolds-averaged Navier–Stokes equations , Turbulence , Resolution (Optics) , Turbochargers , Design , Diffusers , Engineering simulation

Validation of Steady Average-Passage and Mixing Plane CFD Approaches for the Performance Prediction of a Modern Gas Turbine Multistage Axial Compressor

Mahmoud L. Mansour, John Gunaraj, Shraman Goswami

GT 2008; 393-403https://doi.org/10.1115/GT2008-50653

Abstract

View Articletitled, Validation of Steady Average-Passage and Mixing Plane CFD Approaches for the Performance Prediction of a Modern Gas Turbine Multistage Axial Compressor

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Topics: Compressors , Computational fluid dynamics , Gas turbines , Modeling , Turbulence , Flow (Dynamics) , Leakage flows , Stators , Turbomachinery , Aerospace industry

Simulation for a New Cascade of Helium Compressor With Enhanced Pressure Ratio

Yanli Long, Limin Xu, Chunling Xie, Yufeng Sun

GT 2008; 405-414https://doi.org/10.1115/GT2008-50690

Abstract

View Articletitled, Simulation for a New Cascade of Helium Compressor With Enhanced Pressure Ratio

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Topics: Cascades (Fluid dynamics) , Compressors , Helium , Pressure , Simulation , Flow (Dynamics) , Mach number , Very high temperature reactors , Air compressors , Blades

Influence of Blade Fillets on the Performance of a 15 Stage Gas Turbine Compressor

E. Ku¨geler, D. Nu¨rnberger, A. Weber, K. Engel

GT 2008; 415-424https://doi.org/10.1115/GT2008-50748

Abstract

View Articletitled, Influence of Blade Fillets on the Performance of a 15 Stage Gas Turbine Compressor

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Topics: Blades , Compressors , Gas turbines , Simulation , Computational fluid dynamics , Resolution (Optics) , Rotors , Stators , Stress , Boundary layers

Numerical Investigation of Relation Between Unsteady Behavior of Tip Leakage Vortex and Rotating Disturbance in a Transonic Axial Compressor Rotor

K. Yamada, K. Funazaki, H. Sasaki

GT 2008; 425-436https://doi.org/10.1115/GT2008-50779

Abstract

View Articletitled, Numerical Investigation of Relation Between Unsteady Behavior of Tip Leakage Vortex and Rotating Disturbance in a Transonic Axial Compressor Rotor

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Topics: Compressors , Leakage , Rotors , Vortices , Simulation , Clearances (Engineering) , Flow (Dynamics) , NASA , Reynolds-averaged Navier–Stokes equations , Stall inception

Development of a Tip Leakage Control Device for an Axial Flow Fan

Ali Akturk, Cengiz Camci

GT 2008; 437-446https://doi.org/10.1115/GT2008-50785

Abstract

View Articletitled, Development of a Tip Leakage Control Device for an Axial Flow Fan

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Topics: Axial flow , Leakage , Flow (Dynamics) , Pressure , Blades , Clearances (Engineering) , Energy efficiency , Momentum , Particulate matter , Propulsion systems

Steady and Unsteady Flow Field in a Multistage Low-Speed Axial Compressor: A Test Case

Mario Ku¨nzelmann, Ralf Mu¨ller, Ronald Mailach, Konrad Vogeler

GT 2008; 447-455https://doi.org/10.1115/GT2008-50793

Abstract

View Articletitled, Steady and Unsteady Flow Field in a Multistage Low-Speed Axial Compressor: A Test Case

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Topics: Compressors , Pressure , Unsteady flow

High-Fidelity Numerical Analysis of Per-Rev-Type Inlet Distortion Transfer in Multistage Fans: Part I—Simulations With Selected Blade Rows

Jixian Yao, Steven E. Gorrell, Aspi R. Wadia

GT 2008; 457-467https://doi.org/10.1115/GT2008-50812

Abstract

View Articletitled, High-Fidelity Numerical Analysis of Per-Rev-Type Inlet Distortion Transfer in Multistage Fans: Part I—Simulations With Selected Blade Rows

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Topics: Blades , Engineering simulation , Fans , Numerical analysis , Simulation , Engines , Computer simulation , Flow (Dynamics) , Pressure , Computational fluid dynamics

High-Fidelity Numerical Analysis of Per-Rev-Type Inlet Distortion Transfer in Multistage Fans: Part II—Entire Component Simulation and Investigation

Jixian Yao, Steven E. Gorrell, Aspi R. Wadia

GT 2008; 469-480https://doi.org/10.1115/GT2008-50813

Abstract

View Articletitled, High-Fidelity Numerical Analysis of Per-Rev-Type Inlet Distortion Transfer in Multistage Fans: Part II—Entire Component Simulation and Investigation

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Topics: Fans , Numerical analysis , Simulation , Pressure , Temperature , Reynolds-averaged Navier–Stokes equations , Computational fluid dynamics , Engines , Flow (Dynamics) , Blades

Time Accurate Simulations of a Counter-Rotating Aspirated Compressor

Robert D. Knapke, Mark G. Turner, Michael G. List, Daniel S. Galbraith, Tim Beach, Ali A. Merchant

GT 2008; 481-496https://doi.org/10.1115/GT2008-50877

Abstract

View Articletitled, Time Accurate Simulations of a Counter-Rotating Aspirated Compressor

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Topics: Compressors , Simulation , Boundary-value problems , Flow (Dynamics) , Rotors , Design , Entropy , Fluids , Inlet guide vanes , Suction

Effects of the Inlet Boundary Layer Thickness on Rotating Stall in an Axial Compressor

Minsuk Choi, Seong Hwan Oh, Han Young Ko, Je Hyun Baek

GT 2008; 497-507https://doi.org/10.1115/GT2008-50886

Abstract

View Articletitled, Effects of the Inlet Boundary Layer Thickness on Rotating Stall in an Axial Compressor

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Topics: Boundary layers , Compressors , Corners (Structural elements) , Separation (Technology) , Rotors , Blades , Computer simulation , Internal flow , Junctions , Leakage flows

Numerical Simulation of Endwall Fence on the Secondary Flow in Compressor Cascade

Jingjun Zhong, Ji-Ang Han, Yanming Liu, Fu Tian

GT 2008; 509-518https://doi.org/10.1115/GT2008-50888

Abstract

View Articletitled, Numerical Simulation of Endwall Fence on the Secondary Flow in Compressor Cascade

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Topics: Cascades (Fluid dynamics) , Compressors , Computer simulation , Flow (Dynamics)

Numerical Simulation of the Flow Pulsations Origin in Cascades of the Rear Blade Rows in a Gas Turbine Axial Compressor Using Low Calorific Fuel

Vaclav Cyrus, Jiri Polansky

GT 2008; 519-531https://doi.org/10.1115/GT2008-50966

Abstract

View Articletitled, Numerical Simulation of the Flow Pulsations Origin in Cascades of the Rear Blade Rows in a Gas Turbine Axial Compressor Using Low Calorific Fuel

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Topics: Blades , Compressors , Computer simulation , Flow (Dynamics) , Fuels , Gas turbines , Stators , Cascades (Fluid dynamics) , Rotors , Flow simulation

Control of Short Length-Scale Rotating Stall Inception on a High-Speed Axial Compressor With Plasma Actuation

Huu Duc Vo, Joshua D. Cameron, Scott C. Morris

GT 2008; 533-542https://doi.org/10.1115/GT2008-50967

Abstract

View Articletitled, Control of Short Length-Scale Rotating Stall Inception on a High-Speed Axial Compressor With Plasma Actuation

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Topics: Actuators , Clearances (Engineering) , Compressors , Flow (Dynamics) , Plasmas (Ionized gases) , Stall inception

Some Effects of Non-Axisymmetric End Wall Profiling on Axial Flow Compressor Aerodynamics: Part I—Linear Cascade Investigation

N. W. Harvey

GT 2008; 543-555https://doi.org/10.1115/GT2008-50990

Abstract

View Articletitled, Some Effects of Non-Axisymmetric End Wall Profiling on Axial Flow Compressor Aerodynamics: Part I—Linear Cascade Investigation

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Topics: Aerodynamics , Axial flow , Cascades (Fluid dynamics) , Compressors , Flow (Dynamics) , Computational fluid dynamics , Geometry , Design , Design methodology , Stators

Some Effects of Non-Axisymmetric End Wall Profiling on Axial Flow Compressor Aerodynamics: Part II—Multi-Stage HPC CFD Study

N. W. Harvey, T. P. Offord

GT 2008; 557-569https://doi.org/10.1115/GT2008-50991

Abstract

View Articletitled, Some Effects of Non-Axisymmetric End Wall Profiling on Axial Flow Compressor Aerodynamics: Part II—Multi-Stage HPC CFD Study

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Topics: Aerodynamics , Axial flow , Computational fluid dynamics , Corners (Structural elements) , Stators , Compressors , Design , Optimization , Airfoils , Design methodology

Shaping of Tip End-Plate to Control Leakage Vortex Swirl in Axial Flow Fans

Alessandro Corsini, Franco Rispoli, A. G. Sheard

GT 2008; 571-580https://doi.org/10.1115/GT2008-51062

Abstract

View Articletitled, Shaping of Tip End-Plate to Control Leakage Vortex Swirl in Axial Flow Fans

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Topics: Axial flow , Fans , Leakage , Vortices , Chords (Trusses) , Rotors , Blades , Noise control , Passive control , Plates (structures)

CFD Investigation on the Circumferential Grooves Casing Treatment of Transonic Compressor

Xudong Huang, Haixin Chen, Song Fu

GT 2008; 581-589https://doi.org/10.1115/GT2008-51107

Abstract

View Articletitled, CFD Investigation on the Circumferential Grooves Casing Treatment of Transonic Compressor

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Topics: Compressors , Computational fluid dynamics , Clearances (Engineering) , Computation , Leakage , NASA , Rotors , Separation (Technology) , Vortices

Influence of Active Methods of Flow Control on Compressor Blade Cascade Flow

Milan Matejka, Lukas Popelka, Pavel Safarik, Jiri Nozicka

GT 2008; 591-599https://doi.org/10.1115/GT2008-51109

Abstract

View Articletitled, Influence of Active Methods of Flow Control on Compressor Blade Cascade Flow

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Topics: Blades , Compressors , Flow (Dynamics) , Flow control , Actuators , Cascades (Fluid dynamics) , Excitation , Jets , Suction , Vortices

Endwall Performance of Outlet Guide Vane Cascades With Different Blade Loading Distributions

Toyotaka Sonoda, Heinz-Adolf Schreiber, Toshiyuki Arima

GT 2008; 601-615https://doi.org/10.1115/GT2008-51111

Abstract

View Articletitled, Endwall Performance of Outlet Guide Vane Cascades With Different Blade Loading Distributions

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Topics: Blades , Guide vanes , Airfoils , Cascades (Fluid dynamics) , Design , Flow (Dynamics) , Pressure , Reynolds number , Compressors , Diffusion (Physics)

Application of Casing Circumferential Grooves to Counteract the Influence of Tip Clearance

Victor Mileshin, Igor Brailko, Andrew Startsev

GT 2008; 617-627https://doi.org/10.1115/GT2008-51147

Abstract

View Articletitled, Application of Casing Circumferential Grooves to Counteract the Influence of Tip Clearance

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Topics: Clearances (Engineering) , Rotors , Flow (Dynamics) , Blades , Chords (Trusses) , Compressors , Leakage flows , Delays , High pressure (Physics) , Pressure

Design of a Low Solidity Flow-Controlled Stator With Coanda Surface in a High Speed Compressor

Y. Guendogdu, A. Vorreiter, J. R. Seume

GT 2008; 629-639https://doi.org/10.1115/GT2008-51180

Abstract

View Articletitled, Design of a Low Solidity Flow-Controlled Stator With Coanda Surface in a High Speed Compressor

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Topics: Compressors , Design , Flow (Dynamics) , Stators , Airfoils , Boundary layers , Flow control , Separation (Technology) , Suction , Design methodology

Investigation of Tip-Flow Based Stall Criteria Using Rotor Casing Visualization

Matthew A. Bennington, Joshua D. Cameron, Scott C. Morris, Camille Legault, Sean T. Barrows, Jen-Ping Chen, G. Scott McNulty, Aspi R. Wadia

GT 2008; 641-651https://doi.org/10.1115/GT2008-51319

Abstract

View Articletitled, Investigation of Tip-Flow Based Stall Criteria Using Rotor Casing Visualization

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Topics: Flow (Dynamics) , Rotors , Visualization , Fluids , Entropy , Leakage , Annulus , Blades , Clearances (Engineering) , Compressors

On the Interpretation of Casing Measurements in Axial Compressors

Joshua D. Cameron, Scott C. Morris, Sean T. Barrows, Jen-Ping Chen

GT 2008; 653-665https://doi.org/10.1115/GT2008-51371

Abstract

View Articletitled, On the Interpretation of Casing Measurements in Axial Compressors

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Topics: Compressors , Flow (Dynamics) , Physics , Pressure , Stall inception , Annulus , Approximation , Clearances (Engineering) , Computational fluid dynamics , Computer simulation

Performance and Short Length-Scale Disturbance Generation in an Axial Compressor With Non-Uniform Tip Clearance

Scott C. Morris, Joshua D. Cameron, Matthew A. Bennington, G. Scott McNulty, Aspi Wadia

GT 2008; 667-679https://doi.org/10.1115/GT2008-51372

Abstract

View Articletitled, Performance and Short Length-Scale Disturbance Generation in an Axial Compressor With Non-Uniform Tip Clearance

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Topics: Clearances (Engineering) , Compressors , Flow (Dynamics) , Rotors , Stall inception , Transients (Dynamics) , Annulus , Chords (Trusses) , Pressure , Pressure transducers

Numerical Investigation on the Effects of Self-Excited Tip Flow Unsteadiness and Blade Row Interactions on the Performance of a Low Speed Compressor Rotor

Daniel Lee, Paul D. Orkwis, Fu-Lin Tsung, William Magnuszewski, Christopher Noll, G. Scott McNulty

GT 2008; 681-694https://doi.org/10.1115/GT2008-51385

Abstract

View Articletitled, Numerical Investigation on the Effects of Self-Excited Tip Flow Unsteadiness and Blade Row Interactions on the Performance of a Low Speed Compressor Rotor

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Topics: Blades , Compressors , Flow (Dynamics) , Rotors , Stators , Wakes , Steady state , Clearances (Engineering) , Computation , Design

Aerodynamic Behaviour of a Novel Three-Dimensional Shaped Transonic Compressor Rotor Blade

Roberto Biollo, Ernesto Benini

GT 2008; 695-706https://doi.org/10.1115/GT2008-51397

Abstract

View Articletitled, Aerodynamic Behaviour of a Novel Three-Dimensional Shaped Transonic Compressor Rotor Blade

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Topics: Blades , Compressors , Rotors , Flow (Dynamics) , Shock (Mechanics) , Computational fluid dynamics , Clearances (Engineering) , Computer simulation , Shapes , Boundary layers

Numerical Investigation on the Originating Mechanism of Unsteadiness in Tip Leakage Flow for a Transonic Fan Rotor

Juan Du, Feng Lin, Hongwu Zhang, Jingyi Chen

GT 2008; 707-717https://doi.org/10.1115/GT2008-51463

Abstract

View Articletitled, Numerical Investigation on the Originating Mechanism of Unsteadiness in Tip Leakage Flow for a Transonic Fan Rotor

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Topics: Leakage flows , Rotors , Flow (Dynamics) , Clearances (Engineering) , Compressors , Design , Leakage , Momentum , NASA , Pressure

Effect of Temporal Accuracy on the Numerical Prediction of an Isolated Transonic Rotor at Near Stall Conditions

Daniel Lee, Paul D. Orkwis, Fu-Lin Tsung, William Magnuszewski, Christopher Noll

GT 2008; 719-730https://doi.org/10.1115/GT2008-51486

Abstract

View Articletitled, Effect of Temporal Accuracy on the Numerical Prediction of an Isolated Transonic Rotor at Near Stall Conditions

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Topics: Rotors , Unsteady flow , Compressors , Design , Flow (Dynamics) , NASA , Pressure , Reynolds-averaged Navier–Stokes equations , Temperature profiles

Aerodynamics of Compressor Casing Treatment: Part I—Experiment and Time-Accurate Numerical Simulation

Fan Lin, Fangfei Ning, Huoxing Liu

GT 2008; 731-744https://doi.org/10.1115/GT2008-51541

Abstract

View Articletitled, Aerodynamics of Compressor Casing Treatment: Part I—Experiment and Time-Accurate Numerical Simulation

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Topics: Aerodynamics , Axial flow , Blades , Compressors , Computer simulation , Design , Flow (Dynamics) , Reynolds-averaged Navier–Stokes equations , Rotors , Shock (Mechanics)

Aerodynamics of Compressor Casing Treatment: Part II—A Quasi-Steady Model for Casing Treatment Flows

Fangfei Ning, Liping Xu

GT 2008; 745-756https://doi.org/10.1115/GT2008-51542

Abstract

View Articletitled, Aerodynamics of Compressor Casing Treatment: Part II—A Quasi-Steady Model for Casing Treatment Flows

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Topics: Aerodynamics , Compressors , Flow (Dynamics) , Reynolds-averaged Navier–Stokes equations , Design , Physics , Computers , Optimization , Rotors , Unsteady flow

Noise and Innovative Noise Reduction

Gas Turbine Engine Noise

R. Mankbadi

GT 2008; 757-767https://doi.org/10.1115/GT2008-50041

Abstract

View Articletitled, Gas Turbine Engine Noise

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Topics: Gas turbines , Noise (Sound) , Aerodynamic noise , Eddies (Fluid dynamics) , Engineering simulation , Noise control , Simulation

Computational and Experimental Investigations of Jet Noise Reduction Concepts for Low-Bypass Ratio Military Gas Turbine Engines

N. Sinha, D. C. Kenzakowski, R. J. Ungewitter, S. M. Dash, J. M. Seiner

GT 2008; 769-778https://doi.org/10.1115/GT2008-50091

Abstract

View Articletitled, Computational and Experimental Investigations of Jet Noise Reduction Concepts for Low-Bypass Ratio Military Gas Turbine Engines

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Topics: Gas turbines , Military systems , Noise control , Nozzles , Noise (Sound) , Plumes (Fluid dynamics) , Engines , Computational fluid dynamics , Design , Emissions

Experimental and Numerical Investigation on Aeroacoustic Sound of Stator-Rotor System With Trailing Edge Blowing

Yadong Wu, Xiaocheng Zhu, Zhaohui Du

GT 2008; 779-787https://doi.org/10.1115/GT2008-50093

Abstract

View Articletitled, Experimental and Numerical Investigation on Aeroacoustic Sound of Stator-Rotor System With Trailing Edge Blowing

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Topics: Rotors , Stators , Noise (Sound) , Wakes , Blades , Flow (Dynamics) , Fans , Machinery , Radiation (Physics) , Ventilation

Aerodynamic Noise Assessment Using CFD/CAA Technique

Slawomir Dykas, Wlodzimierz Wroblewski, Tadeusz Chmielniak

GT 2008; 789-794https://doi.org/10.1115/GT2008-50140

Abstract

View Articletitled, Aerodynamic Noise Assessment Using CFD/CAA Technique

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Topics: Aerodynamic noise , Computational fluid dynamics , Acoustics , Flow (Dynamics) , Fluctuations (Physics) , Numerical analysis , Spacetime , Unsteady flow

Broadband Entropy Noise Phenomena in a Gas Turbine Combustor

Andre´ Fischer, Friedrich Bake, Ingo Ro¨hle

GT 2008; 795-803https://doi.org/10.1115/GT2008-50263

Abstract

View Articletitled, Broadband Entropy Noise Phenomena in a Gas Turbine Combustor

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Topics: Combustion chambers , Entropy , Gas turbines , Noise (Sound) , Aircraft engines , Emissions , Flow (Dynamics) , Acoustics , Exhaust systems , Flames

Jet Noise Reduction for High Speed Exhaust Systems

Steven Martens, Ludwig Haber

GT 2008; 805-814https://doi.org/10.1115/GT2008-50455

Abstract

View Articletitled, Jet Noise Reduction for High Speed Exhaust Systems

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Topics: Exhaust systems , Noise control , Noise (Sound) , Plumes (Fluid dynamics) , Aircraft , Fluids , Jets , Military aircraft , Military systems , Nozzles

Active and Passive Flow Control of an Incompressible Axisymmetric Jet

Nagendra Karthik Depuru Mohan, David Greenblatt, Christian Navid Nayeri, Christian Oliver Paschereit, Panchapakesan Nagangudy Ramamurthi

GT 2008; 815-827https://doi.org/10.1115/GT2008-50484

Abstract

View Articletitled, Active and Passive Flow Control of an Incompressible Axisymmetric Jet

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Topics: Flow control , Noise control , Suction

Comparison of Experimental and Numerical Results Concerning the Damping of Perforated Liners With Bias Flow

Claus Heuwinkel, Lars Enghard, Ingo Ro¨hle, Bernd Mu¨hlbauer, Berthold Noll, Manfred Aigner, Stefan Busse

GT 2008; 829-836https://doi.org/10.1115/GT2008-50585

Abstract

View Articletitled, Comparison of Experimental and Numerical Results Concerning the Damping of Perforated Liners With Bias Flow

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Topics: Damping , Flow (Dynamics) , Absorption , Combustion , Gas turbines , Simulation , Combustion chambers , Computer simulation , Ducts , Energy dissipation

Reduction of Fan and Compressor Wake Defect Using Plasma Actuation for Tonal Noise Reduction

Se´bastien Lemire, Huu Duc Vo

GT 2008; 837-848https://doi.org/10.1115/GT2008-50821

Abstract

View Articletitled, Reduction of Fan and Compressor Wake Defect Using Plasma Actuation for Tonal Noise Reduction

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Topics: Actuators , Compressors , Noise (Sound) , Noise control , Plasmas (Ionized gases) , Wakes

Low Frequency Noise Contamination in Fan Model Testing

Clifford A. Brown, Nicholas A. Schifer

GT 2008; 849-862https://doi.org/10.1115/GT2008-50850

Abstract

View Articletitled, Low Frequency Noise Contamination in Fan Model Testing

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Topics: Contamination , Noise (Sound) , Testing , Air flow , Spectra (Spectroscopy) , Aircraft engines , Ducts , Engines , Exhaust systems , Flow (Dynamics)

Experimental Aeroacoustic Studies on Improved Tip Geometries for Passive Noise Signature Control in Low-Speed Axial Fan

Stefano Bianchi, Alessandro Corsini, Franco Rispoli, Anthony G. Sheard

GT 2008; 863-875https://doi.org/10.1115/GT2008-51057

Abstract

View Articletitled, Experimental Aeroacoustic Studies on Improved Tip Geometries for Passive Noise Signature Control in Low-Speed Axial Fan

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Topics: Noise (Sound) , Blades , Acoustics , Leakage flows , Acoustic emissions , Fans , Plates (structures) , Rotors , Design , Flow (Dynamics)

Open Counter-Rotation Fan Blades Optimization Based on 3D Inverse Problem Navier-Stokes Solution Method With the Aim of Tonal Noise Reduction

Victor I. Mileshin, Michael A. Nyukhtikov, Igor K. Orekhov, Sergey V. Pankov, Sergey K. Shchipin

GT 2008; 877-885https://doi.org/10.1115/GT2008-51173

Abstract

View Articletitled, Open Counter-Rotation Fan Blades Optimization Based on 3D Inverse Problem Navier-Stokes Solution Method With the Aim of Tonal Noise Reduction

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Topics: Blades , Inverse problems , Noise control , Optimization , Rotation , Acoustics , Noise (Sound) , Rotors , Flow (Dynamics) , Navier-Stokes equations

Numerical Method for Turbomachinery Tonal Noise Generation and Radiation Simulation Using CAA Approach

Mikhail A. Nyukhtikov, Anton A. Rossikhin, Vasily V. Sgadlev, Igor A. Brailko

GT 2008; 887-894https://doi.org/10.1115/GT2008-51182

Abstract

View Articletitled, Numerical Method for Turbomachinery Tonal Noise Generation and Radiation Simulation Using CAA Approach

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Topics: Noise (Sound) , Numerical analysis , Radiation (Physics) , Simulation , Turbomachinery , Acoustics , Rotors , Stators , Pressure , Turbines

Thermoacoustic Models for Evaluating the Sensitivity to Instabilities of Multi-Burner Annular Combustion Chambers

G. Benelli, L. Carrai, S. Sigali, I. Brunetti, L. Castellano

GT 2008; 895-901https://doi.org/10.1115/GT2008-51246

Abstract

View Articletitled, Thermoacoustic Models for Evaluating the Sensitivity to Instabilities of Multi-Burner Annular Combustion Chambers

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Topics: Combustion chambers , Electricity (Physics) , Engines , Machinery , Manufacturing

Numerical Assessment of the Noise Signature Sidewall Contamination of a Linear Cascade With Moving Bars

Manuel A. Burgos, Roque Corral

GT 2008; 903-916https://doi.org/10.1115/GT2008-51380

Abstract

View Articletitled, Numerical Assessment of the Noise Signature Sidewall Contamination of a Linear Cascade With Moving Bars

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Topics: Cascades (Fluid dynamics) , Contamination , Noise (Sound) , Airfoils , Pressure , Acoustics , Blades , Electromagnetic scattering , Radiation scattering , Scattering (Physics)

Axial Flow Turbine Aerodynamics

Effect of Loading Level and Distribution on LPT Losses

C. Prakash, D. G. Cherry, H. W. Shin, J. Machnaim, L. Dailey, R. Beacock, D. Halstead, A. R. Wadia, S. Guillot, W. F. Ng

GT 2008; 917-925https://doi.org/10.1115/GT2008-50052

Abstract

View Articletitled, Effect of Loading Level and Distribution on LPT Losses

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Topics: Blades , Cascades (Fluid dynamics) , Chords (Trusses) , Computational fluid dynamics , Design , Engineering simulation , Flow visualization , Mach number , Pressure , Reynolds number

An Innovative Passive Tip-Leakage Control Method for Axial Turbines: Linear Cascade Wind Tunnel Results

Markus Hamik, Reinhard Willinger

GT 2008; 927-938https://doi.org/10.1115/GT2008-50056

Abstract

View Articletitled, An Innovative Passive Tip-Leakage Control Method for Axial Turbines: Linear Cascade Wind Tunnel Results

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Topics: Cascades (Fluid dynamics) , Leakage , Turbines , Wind tunnels , Blades , Flow (Dynamics) , Pressure , Chords (Trusses) , Geometry , Turbine blades

Numerical Simulation of Tip Clearance Flow Control in Axial Turbine Rotor: Part 1—Active Flow Control Injection From Turbine Blade Tip

Wei Li, Wei-Yang Qiao, Kai-Fu Xu, Hua-Ling Luo

GT 2008; 939-950https://doi.org/10.1115/GT2008-50084

Abstract

View Articletitled, Numerical Simulation of Tip Clearance Flow Control in Axial Turbine Rotor: Part 1—Active Flow Control Injection From Turbine Blade Tip

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Topics: Clearances (Engineering) , Computer simulation , Flow control , Rotors , Turbine blades , Turbines , Flow (Dynamics) , Computational fluid dynamics , Density , Design

Numerical Simulation of Tip Clearance Control in Axial Turbine Rotor: Part 2—Passive Control of Five Different Tip Platforms

Wei Li, Wei-Yang Qiao, Kai-Fu Xu, Hua-Ling Luo

GT 2008; 951-960https://doi.org/10.1115/GT2008-50085

Abstract

View Articletitled, Numerical Simulation of Tip Clearance Control in Axial Turbine Rotor: Part 2—Passive Control of Five Different Tip Platforms

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Topics: Clearances (Engineering) , Computer simulation , Passive control , Rotors , Turbines , Flow (Dynamics) , Flow control , Leakage flows , Pressure , Suction

Research on the Tip Sections of a Long Turbine Blade

David Sˇimurda, Martin Luxa, Jaroslav Syna´cˇ, Pavel Sˇafarˇik

GT 2008; 961-968https://doi.org/10.1115/GT2008-50096

Abstract

View Articletitled, Research on the Tip Sections of a Long Turbine Blade

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Topics: Blades , Cascades (Fluid dynamics) , Flow (Dynamics) , Interferometry , Pressure , Rotors , Schlieren methods , Steam turbines , Turbine blades

The Influence of Lean and Sweep in a Low Pressure Steam Turbine: Analysis of Three Stages With a 3D CFD Model

Roland Sigg, Michael V. Casey, Ju¨rgen F. Mayer, Norbert Su¨rken

GT 2008; 969-978https://doi.org/10.1115/GT2008-50161

Abstract

View Articletitled, The Influence of Lean and Sweep in a Low Pressure Steam Turbine: Analysis of Three Stages With a 3D CFD Model

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Topics: Computational fluid dynamics , Pressure , Steam turbines , Flow (Dynamics) , Equilibrium (Physics) , Blades , Design , Engineering simulation , Equations of state , Flow simulation

Refitting of Exhaust Diffuser of Industrial Gas Turbine

Vladimir Vassiliev, Matthias Rothbrust, Stefan Irmisch

GT 2008; 979-987https://doi.org/10.1115/GT2008-50165

Abstract

View Articletitled, Refitting of Exhaust Diffuser of Industrial Gas Turbine

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Topics: Diffusers , Exhaust systems , Industrial gases , Turbines , Optimization , Flow (Dynamics) , Compressors , Engines , Mach number

Experimental Investigations and Numerical Validation of an Outlet Guide Vane With an Engine Mount Recess

Johan Hja¨rne, Valery Chernoray, Jonas Larsson

GT 2008; 989-998https://doi.org/10.1115/GT2008-50168

Abstract

View Articletitled, Experimental Investigations and Numerical Validation of an Outlet Guide Vane With an Engine Mount Recess

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Topics: Engines , Guide vanes , Flow (Dynamics) , Pressure , Boundary layers , Cascades (Fluid dynamics) , Computational fluid dynamics , Computer simulation , Design , Reynolds number

The Influence of Lean and Sweep in a Low Pressure Steam Turbine: Throughflow Modelling and Experimental Measurements

Lutz Vo¨lker, Michael Casey, John Dunham, Heinrich Stu¨er

GT 2008; 999-1008https://doi.org/10.1115/GT2008-50188

Abstract

View Articletitled, The Influence of Lean and Sweep in a Low Pressure Steam Turbine: Throughflow Modelling and Experimental Measurements

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Topics: Modeling , Pressure , Steam turbines , Design , Flow (Dynamics) , Computational fluid dynamics , Engineering simulation , Nozzles , Probes , Simulation

Effect of Wakes and Secondary Flow on Re-Attachment of Turbine Exit Annular Diffuser Flow

David Kluß, Alexander Wiedermann, Horst Stoff

GT 2008; 1009-1021https://doi.org/10.1115/GT2008-50211

Abstract

View Articletitled, Effect of Wakes and Secondary Flow on Re-Attachment of Turbine Exit Annular Diffuser Flow

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Topics: Diffusers , Flow (Dynamics) , Turbines , Wakes , Wheels , Numerical analysis , Turbulence

The Numerical Study of a New Air-Cooled Turbine Blade With Depression Feature at Leading Edge

Songtao Wang, Kai Wang, Xiaoqing Qiang, Zhongqi Wang

GT 2008; 1023-1030https://doi.org/10.1115/GT2008-50238

Abstract

View Articletitled, The Numerical Study of a New Air-Cooled Turbine Blade With Depression Feature at Leading Edge

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Topics: Turbine blades , Blades , Cooling , Vortices , Energy dissipation , Flow (Dynamics) , Pressure

A Study of Unsteady Secondary Flow in a Water Flow Axial Turbine Model

Christian Kasper, Martin G. Rose, Stephan Staudacher, Jochen Gier

GT 2008; 1031-1039https://doi.org/10.1115/GT2008-50239

Abstract

View Articletitled, A Study of Unsteady Secondary Flow in a Water Flow Axial Turbine Model

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Topics: Flow (Dynamics) , Turbines , Vortices , Water

Shorten the Intermediate Turbine Duct Length by Applying an Integrated Concept

A. Marn, E. Go¨ttlich, D. Cadrecha, H. P. Pirker

GT 2008; 1041-1051https://doi.org/10.1115/GT2008-50269

Abstract

View Articletitled, Shorten the Intermediate Turbine Duct Length by Applying an Integrated Concept

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Topics: Ducts , Turbines , Flow (Dynamics) , Design , Engines , Struts (Engineering) , Weight (Mass) , Bearings , Chords (Trusses) , Pressure

Predicting Separation and Transitional Flow in Turbine Blades at Low Reynolds Numbers

Darius D. Sanders, Walter F. O’Brien, Rolf Sondergaard, Marc D. Polanka, Douglas C. Rabe

GT 2008; 1053-1068https://doi.org/10.1115/GT2008-50283

Abstract

View Articletitled, Predicting Separation and Transitional Flow in Turbine Blades at Low Reynolds Numbers

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Topics: Flow (Dynamics) , Reynolds number , Separation (Technology) , Turbine blades , Turbulence , Boundary layers , Computational fluid dynamics , Turbines , Blades , Cascades (Fluid dynamics)

The Effects of Steady Injection on an Ultra High Lift Vane in a LP Turbine

Thomas Schumann, Martin G. Rose, Stephan Staudacher, Jochen Gier, Th. Schro¨der

GT 2008; 1069-1078https://doi.org/10.1115/GT2008-50330

Abstract

View Articletitled, The Effects of Steady Injection on an Ultra High Lift Vane in a LP Turbine

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Topics: Separation (Technology) , Turbines , Flow (Dynamics) , Blades , Airfoils , Pressure , Suction , Aircraft engines , Dimensions , Flow separation

Modeling and Experimental Evaluation on Torque Loss in Turbine Test Rig

Jeong-Seek Kang, Bong-Jun Cha, Iee-Ki Ahn

GT 2008; 1079-1085https://doi.org/10.1115/GT2008-50341

Abstract

View Articletitled, Modeling and Experimental Evaluation on Torque Loss in Turbine Test Rig

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Topics: Modeling , Torque , Turbines , Bearings , Temperature , Dynamometers , Disks , Particle spin , Rotation , Spin (Aerodynamics)

Influence of Swept Wing on Axial Steam Turbine Static Cascade Aerodynamics

Ziming Feng, Wanjin Han, Jingjun Zhong, Hongming Yan

GT 2008; 1087-1096https://doi.org/10.1115/GT2008-50403

Abstract

View Articletitled, Influence of Swept Wing on Axial Steam Turbine Static Cascade Aerodynamics

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Topics: Aerodynamics , Cascades (Fluid dynamics) , Steam turbines , Wings , Blades , Computer simulation , Pressure , Corners (Structural elements) , Engineering prototypes , Flow (Dynamics)

Second Vane Total Pressure Loss Due to Endwall Iceform Contouring

Ronald S. LaFleur

GT 2008; 1097-1107https://doi.org/10.1115/GT2008-50439

Abstract

View Articletitled, Second Vane Total Pressure Loss Due to Endwall Iceform Contouring

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Topics: Pressure , Flow (Dynamics) , Design , Geometry , Heat transfer , Fluids , Shapes , Boundary-value problems , Cooling , Cylinders

Improving Efficiency of a High Work Turbine Using Non-Axisymmetric Endwalls: Part I—Endwall Design and Performance

T. Germain, M. Nagel, I. Raab, P. Schuepbach, R. S. Abhari, M. Rose

GT 2008; 1109-1119https://doi.org/10.1115/GT2008-50469

Abstract

View Articletitled, Improving Efficiency of a High Work Turbine Using Non-Axisymmetric Endwalls: Part I—Endwall Design and Performance

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Topics: Design , Turbines , Flow (Dynamics) , Computational fluid dynamics , Modeling , Airfoils , Algorithms , Axial flow , Kinetic energy , Optimization

Improving Efficiency of a High Work Turbine Using Non-Axisymmetric Endwalls: Part II—Time-Resolved Flow Physics

P. Schuepbach, R. S. Abhari, M. G. Rose, T. Germain, I. Raab, J. Gier

GT 2008; 1121-1133https://doi.org/10.1115/GT2008-50470

Abstract

View Articletitled, Improving Efficiency of a High Work Turbine Using Non-Axisymmetric Endwalls: Part II—Time-Resolved Flow Physics

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Topics: Flow (Dynamics) , Physics , Turbines , Vorticity , Rotors , Energy dissipation , Probes , Axial flow , Design , Geometry

Effects of Suction and Injection Purge-Flow on the Secondary Flow Structures of a High-Work Turbine

P. Schuepbach, R. S. Abhari, M. G. Rose, T. Germain, I. Raab, J. Gier

GT 2008; 1135-1145https://doi.org/10.1115/GT2008-50471

Abstract

View Articletitled, Effects of Suction and Injection Purge-Flow on the Secondary Flow Structures of a High-Work Turbine

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Topics: Flow (Dynamics) , Suction , Turbines , Rotors , Cavities , Disks , Fluids , Gases , High pressure (Physics) , Stators

Research of a Supersonic Axial Vaneless Rotor-Rotor Turbine

Xiang-Jun Fang, Wei-Jun Zhang, Si-Yong Liu, Ping Wang, Shui-Yan Lv

GT 2008; 1147-1154https://doi.org/10.1115/GT2008-50509

Abstract

View Articletitled, Research of a Supersonic Axial Vaneless Rotor-Rotor Turbine

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Topics: Rotors , Turbines , Design , Vortices , Angular momentum , Flow (Dynamics) , Simulation

Influence of Hot Streak/Airfoil Count Ratios on High Pressure Stage of a Vaneless Counter-Rotating Turbine

Qingjun Zhao, Huishe Wang, Fei Tang, Xiaolu Zhao, Jianzhong Xu

GT 2008; 1155-1166https://doi.org/10.1115/GT2008-50542

Abstract

View Articletitled, Influence of Hot Streak/Airfoil Count Ratios on High Pressure Stage of a Vaneless Counter-Rotating Turbine

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Topics: Airfoils , High pressure (Physics) , Turbines , Rotors , Flow (Dynamics) , Temperature , Blades , Buoyancy , Engineering simulation , Fluids

Blade Lean and Shroud Leakage Flows in Low Aspect Ratio Turbines

Budimir Rosic, Liping Xu

GT 2008; 1167-1178https://doi.org/10.1115/GT2008-50565

Abstract

View Articletitled, Blade Lean and Shroud Leakage Flows in Low Aspect Ratio Turbines

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Topics: Blades , Leakage flows , Turbines , Stators , Design , Flow (Dynamics) , Cavities , Geometry , Rotors , Steam turbines

Tip Clearance Effects on Inlet Hot Streaks Migration Characteristics in High Pressure Stage of a Vaneless Counter-Rotating Turbine

Qingjun Zhao, Jianyi Du, Huishe Wang, Xiaolu Zhao, Jianzhong Xu

GT 2008; 1179-1189https://doi.org/10.1115/GT2008-50582

Abstract

View Articletitled, Tip Clearance Effects on Inlet Hot Streaks Migration Characteristics in High Pressure Stage of a Vaneless Counter-Rotating Turbine

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Topics: Clearances (Engineering) , High pressure (Physics) , Turbines , Rotors , Pressure , Leakage flows , Fluids , Stators , Suction , Temperature

Velocity Distributions for Low Pressure Turbines

John D. Coull, Richard L. Thomas, Howard P. Hodson

GT 2008; 1191-1206https://doi.org/10.1115/GT2008-50589

Abstract

View Articletitled, Velocity Distributions for Low Pressure Turbines

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Topics: Pressure , Turbines , Boundary layers , Diffusion (Physics) , Flow (Dynamics) , Reynolds number , Turbulence , Wakes , Blades , Boundary layer turbulence

Temporal Structure of the Boundary Layer in Low Reynolds Number, Low Pressure Turbine Profiles

Benigno J. Lazaro, Ezequiel Gonzalez, Raul Vazquez

GT 2008; 1207-1215https://doi.org/10.1115/GT2008-50616

Abstract

View Articletitled, Temporal Structure of the Boundary Layer in Low Reynolds Number, Low Pressure Turbine Profiles

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Topics: Boundary layers , Pressure , Reynolds number , Turbines , Flow (Dynamics) , Suction , Shear (Mechanics) , Wakes , Fluids , Separation (Technology)

Tip Clearance Flow Visualization of a Turbine Blade Cascade With Active and Passive Flow Control

Daniel K. Van Ness, II, Thomas C. Corke, Scott C. Morris

GT 2008; 1217-1229https://doi.org/10.1115/GT2008-50703

Abstract

View Articletitled, Tip Clearance Flow Visualization of a Turbine Blade Cascade With Active and Passive Flow Control

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Topics: Cascades (Fluid dynamics) , Clearances (Engineering) , Flow control , Flow visualization , Turbine blades , Flow (Dynamics) , Blades , Pressure , Actuators , Leakage

Turbine Blade Tip Leakage Flow Control: Thick/Thin Blade Effects and Separation Line Studies

Julia E. Stephens, Thomas Corke, Scott C. Morris

GT 2008; 1231-1241https://doi.org/10.1115/GT2008-50705

Abstract

View Articletitled, Turbine Blade Tip Leakage Flow Control: Thick/Thin Blade Effects and Separation Line Studies

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Topics: Blades , Leakage flows , Separation (Technology) , Turbine blades , Flow (Dynamics) , Pressure , Cascades (Fluid dynamics) , Flow visualization , Chords (Trusses) , Flow control

Numerical and Experimental Studies on Separated Boundary Layers Over Ultra-High Lift Low-Pressure Turbine Cascade Airfoils With Variable Solidity: Effects of Free-Stream Turbulence

Ken-Ichi Funazaki, Kazutoyo Yamada, Yasuhiro Chiba, Nozomi Tanaka

GT 2008; 1243-1252https://doi.org/10.1115/GT2008-50718

Abstract

View Articletitled, Numerical and Experimental Studies on Separated Boundary Layers Over Ultra-High Lift Low-Pressure Turbine Cascade Airfoils With Variable Solidity: Effects of Free-Stream Turbulence

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Topics: Airfoils , Boundary layers , Cascades (Fluid dynamics) , Pressure , Turbines , Turbulence , Probes , Blades , Bubbles , Flow (Dynamics)

Comparison Between Hot Wire and 5-Hole Pressure Probe Traverse Data in a Variable Density Two-Stages Air Turbine

Alberto D’Ovidio, Lucy Littlewood, F. Congiu, P. Ruffino, Thomas Mokulys

GT 2008; 1253-1263https://doi.org/10.1115/GT2008-50753

Abstract

View Articletitled, Comparison Between Hot Wire and 5-Hole Pressure Probe Traverse Data in a Variable Density Two-Stages Air Turbine

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Topics: Density , Pressure , Probes , Turbines , Wire , Flow (Dynamics) , Blades , Calibration , Circuits , Computational fluid dynamics

Experimental and Numerical Investigation of Interactions Between Axial Turbine and Non-Axisymmetric Exhaust Hood

Jing-Lun Fu, Si-Jing Zhou, Jian-Jun Liu

GT 2008; 1265-1278https://doi.org/10.1115/GT2008-50766

Abstract

View Articletitled, Experimental and Numerical Investigation of Interactions Between Axial Turbine and Non-Axisymmetric Exhaust Hood

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Topics: Exhaust systems , Turbines

A Comparative Analysis of Pressure Side Extensions for Tip Leakage Control in Axial Turbines

Akamol Shavalikul, Cengiz Camci

GT 2008; 1279-1288https://doi.org/10.1115/GT2008-50782

Abstract

View Articletitled, A Comparative Analysis of Pressure Side Extensions for Tip Leakage Control in Axial Turbines

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Topics: Leakage , Pressure , Turbines , Axial flow , Blades , Computation , Flow (Dynamics) , Boundary-value problems , Cascades (Fluid dynamics) , Corners (Structural elements)

Impact of Time-Resolved Entropy Measurement on a One-and-1/2-Stage Axial Turbine Performance

M. Mansour, N. Chokani, A. I. Kalfas, R. S. Abhari

GT 2008; 1289-1300https://doi.org/10.1115/GT2008-50807

Abstract

View Articletitled, Impact of Time-Resolved Entropy Measurement on a One-and-1/2-Stage Axial Turbine Performance

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Topics: Entropy , Turbines , Probes , Rotors , Design , Pressure , Stators , Aircraft engines , Blades , Flow (Dynamics)

Using Profiled Endwalls, Blade Lean and Leading Edge Extensions to Minimize Secondary Flow

David Gregory-Smith, David Bagshaw, Grant Ingram, Mark Stokes

GT 2008; 1301-1311https://doi.org/10.1115/GT2008-50811

Abstract

View Articletitled, Using Profiled Endwalls, Blade Lean and Leading Edge Extensions to Minimize Secondary Flow

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Topics: Blades , Flow (Dynamics) , Pressure gradient , Engineering design processes , Turbines

Experimental Investigation of the Time-Averaged Flow in an Intermediate Turbine Duct

Lars-Uno Axelsson, T. Gunnar Johansson

GT 2008; 1313-1322https://doi.org/10.1115/GT2008-50829

Abstract

View Articletitled, Experimental Investigation of the Time-Averaged Flow in an Intermediate Turbine Duct

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Topics: Ducts , Flow (Dynamics) , Pressure , Turbines , Turbulence

Toward the Expansion of Low-Pressure-Turbine Airfoil Design Space

T. J. Praisner, E. A. Grover, D. C. Knezevici, I. Popovic, S. A. Sjolander, J. P. Clark, R. Sondergaard

GT 2008; 1323-1331https://doi.org/10.1115/GT2008-50898

Abstract

View Articletitled, Toward the Expansion of Low-Pressure-Turbine Airfoil Design Space

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Topics: Airfoils , Design , Pressure , Turbines , Engines , Modeling , Flight , Reynolds number , Unmanned aerial vehicles , Weight (Mass)

Shroud Leakage Modeling of the Flow in a Two Stage Axial Test Turbine

M. Pau, F. Cambuli, N. Mandas

GT 2008; 1333-1343https://doi.org/10.1115/GT2008-51093

Abstract

View Articletitled, Shroud Leakage Modeling of the Flow in a Two Stage Axial Test Turbine

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Topics: Flow (Dynamics) , Leakage , Modeling , Turbines , Blades , Cavities , Leakage flows , Design , Clearances (Engineering) , Engineering simulation

Designing LP Turbines for Optimized Airfoil Lift

Jochen Gier, Matthias Franke, Norbert Hu¨bner, Thomas Schro¨der

GT 2008; 1345-1358https://doi.org/10.1115/GT2008-51101

Abstract

View Articletitled, Designing LP Turbines for Optimized Airfoil Lift

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Topics: Airfoils , Design , Turbines , Fuels , Weight (Mass) , Aircraft engines , Carbon dioxide , Diffusion (Physics) , Engines , Flow (Dynamics)

The Dynamics of the Vorticity Field in a Low Solidity Axial Turbine

K. G. Barmpalias, A. I. Kalfas, N. Chokani, R. S. Abhari

GT 2008; 1359-1368https://doi.org/10.1115/GT2008-51142

Abstract

View Articletitled, The Dynamics of the Vorticity Field in a Low Solidity Axial Turbine

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Topics: Dynamics (Mechanics) , Turbines , Vorticity , Flow (Dynamics) , Blades , Vortices , Design , High pressure (Physics) , Pressure , Probes

An Experimental Investigation of the Wake Shed From a High-Lift Low Pressure Turbine Cascade at Different Reynolds Numbers

Francesca Satta, Marina Ubaldi, Pietro Zunino, Claudia Schipani

GT 2008; 1369-1378https://doi.org/10.1115/GT2008-51157

Abstract

View Articletitled, An Experimental Investigation of the Wake Shed From a High-Lift Low Pressure Turbine Cascade at Different Reynolds Numbers

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Topics: Cascades (Fluid dynamics) , Pressure , Reynolds number , Turbines , Wakes , Blades , Boundary layers , Separation (Technology) , Suction , Chords (Trusses)

The Influence of Blade Lean on Straight and Annular Turbine Cascade Flow Field

Gabriele D’Ippolito, Vincenzo Dossena, Alessandro Mora

GT 2008; 1379-1389https://doi.org/10.1115/GT2008-51199

Abstract

View Articletitled, The Influence of Blade Lean on Straight and Annular Turbine Cascade Flow Field

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Topics: Blades , Flow (Dynamics) , Turbines , Pressure , Sensitivity analysis , Vorticity , Design , Flow visualization , Mach number , Nozzles

Aerothermal Impact of Stator-Rim Purge Flow and Rotor-Platform Film Cooling on a Transonic Turbine Stage

M. Pau, G. Paniagua, D. Delhaye, A. de la Loma, P. Ginibre

GT 2008; 1391-1404https://doi.org/10.1115/GT2008-51295

Abstract

View Articletitled, Aerothermal Impact of Stator-Rim Purge Flow and Rotor-Platform Film Cooling on a Transonic Turbine Stage

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Topics: Film cooling , Flow (Dynamics) , Rotors , Stators , Turbines , Blades , Cooling , Cavities , Disks , Pressure

Measurements of Secondary Losses in a Turbine Cascade With the Implementation of Non-Axisymmetric Endwall Contouring

D. C. Knezevici, S. A. Sjolander, T. J. Praisner, E. Allen-Bradley, E. A. Grover

GT 2008; 1405-1417https://doi.org/10.1115/GT2008-51311

Abstract

View Articletitled, Measurements of Secondary Losses in a Turbine Cascade With the Implementation of Non-Axisymmetric Endwall Contouring

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Topics: Cascades (Fluid dynamics) , Turbines , Blades , Flow (Dynamics) , Airfoils , Kinetic energy , Pressure , Probes , Suction , Chords (Trusses)

Spectral Analysis of the Flow in an Intermediate Turbine Duct

Lars-Uno Axelsson, William K. George

GT 2008; 1419-1426https://doi.org/10.1115/GT2008-51340

Abstract

View Articletitled, Spectral Analysis of the Flow in an Intermediate Turbine Duct

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Topics: Ducts , Emission spectroscopy , Flow (Dynamics) , Spectroscopy , Turbines , Turbulence

Separated Flow Measurements on a Highly Loaded Low-Pressure Turbine Airfoil

Ralph J. Volino

GT 2008; 1427-1437https://doi.org/10.1115/GT2008-51445

Abstract

View Articletitled, Separated Flow Measurements on a Highly Loaded Low-Pressure Turbine Airfoil

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Topics: Airfoils , Flow measurement , Pressure , Turbines , Boundary layers , Reynolds number , Cascades (Fluid dynamics) , Separation (Technology) , Suction , Turbulence

Radial Turbomachinery Aerodynamics

Improved Performance Model of Turbocharger Centrifugal Compressor

Mingyang Yang, Xinqian Zheng, Yangjun Zhang, Zhigang Li

GT 2008; 1439-1445https://doi.org/10.1115/GT2008-50009

Abstract

View Articletitled, Improved Performance Model of Turbocharger Centrifugal Compressor

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Topics: Compressors , Turbochargers , Compressor impellers , Design , Engines , Gasoline engines

Numerical Simulations of Onset of Volute Stall Inside a Centrifugal Compressor

Hua Chen, Strong Guo, Xiao-Cheng Zhu, Zhao-Hui Du, Stone Zhao

GT 2008; 1447-1457https://doi.org/10.1115/GT2008-50036

Abstract

View Articletitled, Numerical Simulations of Onset of Volute Stall Inside a Centrifugal Compressor

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Topics: Compressors , Computer simulation , Flow (Dynamics) , Pressure , Blades , Computer software , Diffusers , Impellers , Navier-Stokes equations , Simulation

Improved Performance of a Radial Turbine Through the Implementation of Back Swept Blading

Liam Barr, Stephen W. T. Spence, Paul Eynon

GT 2008; 1459-1468https://doi.org/10.1115/GT2008-50064

Abstract

View Articletitled, Improved Performance of a Radial Turbine Through the Implementation of Back Swept Blading

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Topics: Turbines , Blades , Design , Rotors , Stress , Turbochargers , Computational fluid dynamics , Computer simulation , Electromagnetic induction , Engines

Effects of Blade Stack on Pipeline Compressor Impeller Performance

Michael J. Cave

GT 2008; 1469-1474https://doi.org/10.1115/GT2008-50071

Abstract

View Articletitled, Effects of Blade Stack on Pipeline Compressor Impeller Performance

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Topics: Blades , Compressor impellers , Pipelines , Impellers , Computational fluid dynamics , Gas compressors , Geometry , Natural gas distribution , Pinch effect , Probes

Low Solidity Cascade Diffuser and Scroll Optimization for Centrifugal Compressors

Florin Iancu, John Trevino, Steven Sommer

GT 2008; 1475-1485https://doi.org/10.1115/GT2008-50132

Abstract

View Articletitled, Low Solidity Cascade Diffuser and Scroll Optimization for Centrifugal Compressors

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Topics: Cascades (Fluid dynamics) , Compressors , Diffusers , Optimization , Computational fluid dynamics , Computer software , Flow (Dynamics) , Vaneless diffusers , Compression , Geometry

Numerical Investigation of Low Solidity Vaned Diffuser Performance in a High-Pressure Centrifugal Compressor: Part II—Influence of Vane Stagger

JongSik Oh, Charles W. Buckley, Giri L. Agrawal

GT 2008; 1487-1494https://doi.org/10.1115/GT2008-50178

Abstract

View Articletitled, Numerical Investigation of Low Solidity Vaned Diffuser Performance in a High-Pressure Centrifugal Compressor: Part II—Influence of Vane Stagger

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Topics: Compressors , Diffusers , High pressure (Physics) , Design , Pressure , Airfoils , Flow (Dynamics)

Numerical and Experimental Study of the Performance Effects of Varying Vaneless Space and Vane Solidity in Radial Inflow Turbine Stators

Alister Simpson, Stephen Spence, John Watterson

GT 2008; 1495-1505https://doi.org/10.1115/GT2008-50261

Abstract

View Articletitled, Numerical and Experimental Study of the Performance Effects of Varying Vaneless Space and Vane Solidity in Radial Inflow Turbine Stators

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Topics: Inflow , Stators , Turbines , Design , Rotors , Blades , Computational fluid dynamics , Computer simulation , Computer software , Engineering simulation

Numerical and Experimental Investigation of the Flow and Performance Characteristics of Twin-Entry Radial Turbine Under Full and Partial Admission Conditions

M. R. Shahhosseini, A. Hajilouy-Benisi, M. Rad

GT 2008; 1507-1517https://doi.org/10.1115/GT2008-50397

Abstract

View Articletitled, Numerical and Experimental Investigation of the Flow and Performance Characteristics of Twin-Entry Radial Turbine Under Full and Partial Admission Conditions

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Topics: Flow (Dynamics) , Performance characterization , Turbines , Entropy , Pressure , Turbochargers , Impellers , Inflow , Internal flow , Probes

The Effect of Clearance Flow of Variable Area Nozzles on Radial Turbine Performance

Hideaki Tamaki, Shinya Goto, Masaru Unno, Akira Iwakami

GT 2008; 1519-1529https://doi.org/10.1115/GT2008-50461

Abstract

View Articletitled, The Effect of Clearance Flow of Variable Area Nozzles on Radial Turbine Performance

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Topics: Clearances (Engineering) , Flow (Dynamics) , Nozzles , Turbines , Computational fluid dynamics , Impellers , Leakage flows , Probes , Wakes , Yaw

Design of a Centrifugal Compressor With Low Specific Speed for Automotive Fuel Cell

Xinqian Zheng, Yangjun Zhang, Hong He, Zhiling Qiu

GT 2008; 1531-1536https://doi.org/10.1115/GT2008-50468

Abstract

View Articletitled, Design of a Centrifugal Compressor With Low Specific Speed for Automotive Fuel Cell

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Topics: Compressors , Design , Fuel cells , Electric motors , Engines , Pressure

Numerical Studies of Diffuser Inlet Configurations for Small Flow Rate Radial Compressors

Zeng Qian

GT 2008; 1537-1545https://doi.org/10.1115/GT2008-50612

Abstract

View Articletitled, Numerical Studies of Diffuser Inlet Configurations for Small Flow Rate Radial Compressors

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Topics: Compressors , Diffusers , Flow (Dynamics) , Impellers , Leakage , Computational fluid dynamics , Design , Pressure , Thermal expansion , Vaneless diffusers

The Asymmetric Twin Scroll Turbine for Exhaust Gas Turbochargers

Markus Mu¨ller, Thomas Streule, Siegfried Sumser, Gernot Hertweck, Arno Nolte, Wolfram Schmid

GT 2008; 1547-1554https://doi.org/10.1115/GT2008-50614

Abstract

View Articletitled, The Asymmetric Twin Scroll Turbine for Exhaust Gas Turbochargers

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Topics: Exhaust systems , Turbines , Turbochargers , Flow (Dynamics) , Exhaust gas recirculation , Pressure , Design , Engines , Wheels , Cylinders

Computational Aerodynamic Performance on Radial and Mixed-Flow Design Options for a High Specific Speed Turbine

JongSik Oh, Charles W. Buckley, Giri L. Agrawal

GT 2008; 1555-1560https://doi.org/10.1115/GT2008-50714

Abstract

View Articletitled, Computational Aerodynamic Performance on Radial and Mixed-Flow Design Options for a High Specific Speed Turbine

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Topics: Design , Flow (Dynamics) , Turbines , Rotors , Nozzles , Pressure , Blades , Computational fluid dynamics , Engines , Geometry

Analysis of Noise Generated by Low Solidity Cascade Diffuser in a Centrifugal Blower

Daisaku Sakaguchi, Masahiro Ishida, Hironobu Ueki, Hiroshi Hayami, Yasutoshi Senoo

GT 2008; 1561-1569https://doi.org/10.1115/GT2008-50750

Abstract

View Articletitled, Analysis of Noise Generated by Low Solidity Cascade Diffuser in a Centrifugal Blower

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Topics: Cascades (Fluid dynamics) , Diffusers , Impellers , Noise (Sound)

Design and Off-Design Numerical Investigation of a Transonic Double-Splitter Centrifugal Compressor

Michele Marconcini, Filippo Rubechini, Andrea Arnone, Seiichi Ibaraki

GT 2008; 1571-1578https://doi.org/10.1115/GT2008-50759

Abstract

View Articletitled, Design and Off-Design Numerical Investigation of a Transonic Double-Splitter Centrifugal Compressor

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Topics: Compressors , Design , Flow (Dynamics) , Impellers , Blades , Computation , Cross section (Physics) , Diffusers , Flow measurement , High pressure (Physics)

Unsteady Performance of a Double Entry Turbocharger Turbine With a Comparison to Steady Flow Conditions

Colin D. Copeland, Ricardo Martinez-Botas, Martin Seiler

GT 2008; 1579-1588https://doi.org/10.1115/GT2008-50827

Abstract

View Articletitled, Unsteady Performance of a Double Entry Turbocharger Turbine With a Comparison to Steady Flow Conditions

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Topics: Flow (Dynamics) , Turbines , Turbochargers , Exhaust systems , Rotors , Combustion , Engines , Machinery , Nozzles , Unsteady flow

Lean and Straight Nozzle Vanes in a Variable Geometry Turbine: A Steady and Pulsating Flow Investigation

Srithar Rajoo, R. F. Martinez-Botas

GT 2008; 1589-1601https://doi.org/10.1115/GT2008-50828

Abstract

View Articletitled, Lean and Straight Nozzle Vanes in a Variable Geometry Turbine: A Steady and Pulsating Flow Investigation

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Topics: Geometry , Nozzles , Pulsatile flow , Turbines , Flow (Dynamics) , Turbochargers , Cycles , Engines , Pressure , Design

Experimental and Theoretical Investigation of Centrifugal Compressor Performance Characteristics

Sayyed Mostafa Motavalli, Ali Hajilouy-Benisi, Mahdi Nili-Ahmadabadi

GT 2008; 1603-1610https://doi.org/10.1115/GT2008-50939

Abstract

View Articletitled, Experimental and Theoretical Investigation of Centrifugal Compressor Performance Characteristics

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Topics: Compressors , Performance characterization , Energy dissipation , Flow (Dynamics) , Turbochargers , Computers , Design , Equipment performance , Modeling , Turbomachinery

Investigation of the Secondary Flow Structure in the Mixed Flow Turbine for a High Pressure Ratio Turbocharger

Li Chen, Weilin Zhuge, Yangjun Zhang, Shuyong Zhang, Jizhong Zhang

GT 2008; 1611-1618https://doi.org/10.1115/GT2008-50941

Abstract

View Articletitled, Investigation of the Secondary Flow Structure in the Mixed Flow Turbine for a High Pressure Ratio Turbocharger

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Topics: Flow (Dynamics) , High pressure (Physics) , Turbines , Turbochargers , Vortices , Cross section (Physics) , Entropy , Leakage , Resolution (Optics) , Turbulence

Numerical Simulation of a Transonic Centrifugal Compressor Blades Tip Clearance Flow of Vehicle Turbocharger

Gongda Guo, Yangjun Zhang, Jianzhong Xu, Xinqian Zheng, Weilin Zhuge

GT 2008; 1619-1625https://doi.org/10.1115/GT2008-50957

Abstract

View Articletitled, Numerical Simulation of a Transonic Centrifugal Compressor Blades Tip Clearance Flow of Vehicle Turbocharger

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Topics: Blades , Clearances (Engineering) , Compressors , Computer simulation , Flow (Dynamics) , Turbochargers , Vehicles , Vortices , Leakage , Shock waves

Experimental and Numerical Investigation of a Centrifugal Compressor and Numerical Study of the Area Ratio and Tip Clearance Effects on the Performance Characteristic

Mahdi Nili-Ahmadabadi, Ali Hajilouy-Benisi, Mohammad Durali, Sayyed Mostafa Motavalli

GT 2008; 1627-1637https://doi.org/10.1115/GT2008-50969

Abstract

View Articletitled, Experimental and Numerical Investigation of a Centrifugal Compressor and Numerical Study of the Area Ratio and Tip Clearance Effects on the Performance Characteristic

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Topics: Clearances (Engineering) , Compressors , Flow (Dynamics) , Impellers , Performance characterization , Rotors , Cutting , Design , Diffusers , Pressure

Performance Improvement of Centrifugal Compressor Impellers by Optimizing Blade-Loading Distribution

Manabu Yagi, Tadaharu Kishibe, Takanori Shibata, Hideo Nishida, Hiromi Kobayashi

GT 2008; 1639-1648https://doi.org/10.1115/GT2008-51025

Abstract

View Articletitled, Performance Improvement of Centrifugal Compressor Impellers by Optimizing Blade-Loading Distribution

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Topics: Blades , Compressor impellers , Impellers , Design , Computational fluid dynamics , Flow (Dynamics) , Performance characterization , Suction , Testing performance

An Aerodynamic Optimization Procedure for the Preliminary Design of Centrifugal Compressor Stages

Omar Elshamy, Nidal Ghizawi, Ce´line Yon, Simone Pazzi, Denis Guenard

GT 2008; 1649-1655https://doi.org/10.1115/GT2008-51154

Abstract

View Articletitled, An Aerodynamic Optimization Procedure for the Preliminary Design of Centrifugal Compressor Stages

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Topics: Compressors , Design , Optimization , Algorithms , Engineering simulation , Errors , Genetic algorithms , Sensitivity analysis , Simulation , Surges

Design, Validation and Application of a Radial Cascade for Centrifugal Compressors

Alexander Simpson, Christian Aalburg, Michael Schmitz, Robbert Pannekeet, Florian Larisch, Vittorio Michelassi

GT 2008; 1657-1666https://doi.org/10.1115/GT2008-51262

Abstract

View Articletitled, Design, Validation and Application of a Radial Cascade for Centrifugal Compressors

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Topics: Cascades (Fluid dynamics) , Compressors , Design , Computational fluid dynamics , Flow (Dynamics) , Blades , Pressure , Airfoils , Annulus , Calibration

Design and Testing of Multistage Centrifugal Compressors With Small Diffusion Ratios

C. Aalburg, A. Simpson, M. B. Schmitz, V. Michelassi, S. Evangelisti, E. Belardini, V. Ballarini

GT 2008; 1667-1676https://doi.org/10.1115/GT2008-51263

Abstract

View Articletitled, Design and Testing of Multistage Centrifugal Compressors With Small Diffusion Ratios

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Topics: Compressors , Design , Diffusion (Physics) , Testing , Impellers , Optimization , Stators , Computational fluid dynamics , Databases , Experimental design

PIV Investigation of a High Speed Centrifugal Compressor Diffuser: Spanwise and Loading Variations

Beni Cukurel, Patrick B. Lawless, Sanford Fleeter

GT 2008; 1677-1686https://doi.org/10.1115/GT2008-51321

Abstract

View Articletitled, PIV Investigation of a High Speed Centrifugal Compressor Diffuser: Spanwise and Loading Variations

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Topics: Compressors , Diffusers , Flow (Dynamics) , Durability , Impellers , Particulate matter , Unsteady flow

A Meanline Model for Impeller Flow Recirculation

Xuwen Qiu, David Japikse, Mark Anderson

GT 2008; 1687-1694https://doi.org/10.1115/GT2008-51349

Abstract

View Articletitled, A Meanline Model for Impeller Flow Recirculation

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Topics: Flow (Dynamics) , Impellers , Blades , Suction , Coriolis force , Design , Diffusers , Energy consumption , Flow turning , Modeling

Performance Prediction of Centrifugal Impellers Using a Two-Zone Model

Ian Britton, J. E. Donald Gauthier

GT 2008; 1695-1704https://doi.org/10.1115/GT2008-51530

Abstract

View Articletitled, Performance Prediction of Centrifugal Impellers Using a Two-Zone Model

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Topics: Impellers , Design , Algorithms , Compressors , Computers , Diffusion (Physics) , Flow (Dynamics) , Geometry , Model development , Pressure

Experimental Investigation of a Centrifugal Compressor Stage With Focus on the Flow in the Pipe Diffuser Supported by Particle Image Velocimetry (PIV) Measurements

Uwe Zachau, Carsten Buescher, Reinhard Niehuis, Herwart Hoenen, David C. Wisler, Zaher M. Moussa

GT 2008; 1705-1713https://doi.org/10.1115/GT2008-51538

Abstract

View Articletitled, Experimental Investigation of a Centrifugal Compressor Stage With Focus on the Flow in the Pipe Diffuser Supported by Particle Image Velocimetry (PIV) Measurements

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Topics: Compressors , Diffusers , Flow (Dynamics) , Particulate matter , Pipes , Design , Impellers , Clearances (Engineering) , Lasers , Optical measurement

Component Interactions (With Combustion and Fuels Committee)

Effects of Turbine Tip Clearance on Gas Turbine Performance

Cleverson Bringhenti, Joa˜o Roberto Barbosa

GT 2008; 1715-1721https://doi.org/10.1115/GT2008-50196

Abstract

View Articletitled, Effects of Turbine Tip Clearance on Gas Turbine Performance

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Topics: Clearances (Engineering) , Gas turbines , Turbines , Blades , Engines , Compressors , Boundary layers , Cycles , Damage , Exterior walls

The Influence of Dump Gap on External Combustor Aerodynamics at High Fuel Injector Flow Rates

A. Duncan Walker, Jon F. Carrotte, James J. McGuirk

GT 2008; 1723-1733https://doi.org/10.1115/GT2008-50271

Abstract

View Articletitled, The Influence of Dump Gap on External Combustor Aerodynamics at High Fuel Injector Flow Rates

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Topics: Aerodynamics , Combustion chambers , Flow (Dynamics) , Fuel injectors , Diffusers , Rotors , Design , Annulus , Compressors , Carbon dioxide

Aero-Thermal Study of the Unsteady Flow Field in a Transonic Gas Turbine With Inlet Temperature Distortions

Francesco Martelli, Paolo Adami, Simone Salvadori, Kam S. Chana, Lionel Castillon

GT 2008; 1735-1747https://doi.org/10.1115/GT2008-50628

Abstract

View Articletitled, Aero-Thermal Study of the Unsteady Flow Field in a Transonic Gas Turbine With Inlet Temperature Distortions

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Topics: Blades , Collaboration , Computational fluid dynamics , Design , Flow (Dynamics) , Fluids , Gas turbines , Heat transfer , High pressure (Physics) , Modeling

Hot Streak and Vane Coolant Migration in a Downstream Rotor

Jonathan Ong, Robert J. Miller

GT 2008; 1749-1760https://doi.org/10.1115/GT2008-50971

Abstract

View Articletitled, Hot Streak and Vane Coolant Migration in a Downstream Rotor

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Topics: Blades , Coolants , Flow (Dynamics) , Rotors , Vortices

Improvement of Performance Prediction by Automated Assimilation of Gas Turbine Component Maps

M. Zwingenberg, F.-K. Benra, K. Werner

GT 2008; 1761-1770https://doi.org/10.1115/GT2008-51068

Abstract

View Articletitled, Improvement of Performance Prediction by Automated Assimilation of Gas Turbine Component Maps

PDF

Topics: Gas turbines

Unsteady Flows in Turbomachinery

Blade Row Interaction in a One and a Half Stage Transonic Turbine Focusing on Three Dimensional Effects: Part II—Clocking Effects

O. Schennach, B. Paradiso, G. Persico, P. Gaetani, J. Woisetschla¨ger

GT 2008; 1771-1782https://doi.org/10.1115/GT2008-50065

Abstract

View Articletitled, Blade Row Interaction in a One and a Half Stage Transonic Turbine Focusing on Three Dimensional Effects: Part II—Clocking Effects

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Topics: Blades , Turbines , Flow (Dynamics) , High pressure (Physics) , Pressure , Probes , Rotors , Airfoils , Indexing (Machining) , Laser Doppler anemometry

Simultaneous Spike-Type and Modal-Type Stall Inception: Theoretical Analysis

Joseph Pismenny, Yeshayahou Levy

GT 2008; 1783-1793https://doi.org/10.1115/GT2008-50079

Abstract

View Articletitled, Simultaneous Spike-Type and Modal-Type Stall Inception: Theoretical Analysis

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Topics: Stall inception , Theoretical analysis , Compressors , Axial flow , Compression , Pressure , Sensors , Signals

Compressor Wake/Leading-Edge Interactions at Off Design Incidences

Andrew P. S. Wheeler, Robert J. Miller

GT 2008; 1795-1806https://doi.org/10.1115/GT2008-50177

Abstract

View Articletitled, Compressor Wake/Leading-Edge Interactions at Off Design Incidences

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Topics: Compressors , Design , Wakes , Flow (Dynamics) , Momentum , Boundary layers , Bubbles , Shear stress , Turbulence , Blades

Investigation of Blade Tip Interaction With Casing Treatment in a Transonic Compressor: Part 1—Particle Image Velocimetry

M. Voges, R. Schnell, C. Willert, R. Mo¨nig, M. W. Mu¨ller, C. Zscherp

GT 2008; 1807-1819https://doi.org/10.1115/GT2008-50210

Abstract

View Articletitled, Investigation of Blade Tip Interaction With Casing Treatment in a Transonic Compressor: Part 1—Particle Image Velocimetry

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Topics: Blades , Compressors , Particulate matter , Rotors , Flow (Dynamics) , Clearances (Engineering) , Computational fluid dynamics , Geometry , Probes , Accounting

Investigation of Blade Tip Interaction With Casing Treatment in a Transonic Compressor: Part 2—Numerical Results

R. Schnell, M. Voges, R. Mo¨nig, M. W. Mu¨ller, C. Zscherp

GT 2008; 1821-1834https://doi.org/10.1115/GT2008-50212

Abstract

View Articletitled, Investigation of Blade Tip Interaction With Casing Treatment in a Transonic Compressor: Part 2—Numerical Results

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Topics: Blades , Compressors , Rotors , Engineering simulation , Simulation , Algorithms , Boundary-value problems , Flow (Dynamics) , Geometry , Stators

Effect of Unsteadiness on the Performance of a Transonic Centrifugal Compressor Stage

Isabelle Tre´binjac, Pascale Kulisa, Nicolas Bulot, Nicolas Rochuon

GT 2008; 1835-1845https://doi.org/10.1115/GT2008-50260

Abstract

View Articletitled, Effect of Unsteadiness on the Performance of a Transonic Centrifugal Compressor Stage

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Topics: Compressors , Engineering simulation , Flow (Dynamics) , Shock waves , Simulation , Impellers , Pressure , Wakes , Blades , Deformation

Blade Row Interaction in a One and a Half Stage Transonic Turbine Focusing on Three Dimensional Effects: Part I—Stator-Rotor Interaction

B. Paradiso, G. Persico, P. Gaetani, O. Schennach, R. Pecnik, J. Woisetschla¨ger

GT 2008; 1847-1858https://doi.org/10.1115/GT2008-50291

Abstract

View Articletitled, Blade Row Interaction in a One and a Half Stage Transonic Turbine Focusing on Three Dimensional Effects: Part I—Stator-Rotor Interaction

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Topics: Blades , Rotors , Stators , Turbines , Computational fluid dynamics , Shock (Mechanics) , Vortices , Flow (Dynamics) , Aerodynamics , Aircraft engines

Effect of Roughness and Unsteadiness on the Performance of a New LPT Blade at Low Reynolds Numbers

Francesco Montomoli, Howard Hodson, Frank Haselbach

GT 2008; 1859-1870https://doi.org/10.1115/GT2008-50488

Abstract

View Articletitled, Effect of Roughness and Unsteadiness on the Performance of a New LPT Blade at Low Reynolds Numbers

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Topics: Blades , Reynolds number , Surface roughness , Wakes , Wind tunnels , Cascades (Fluid dynamics) , Circuits , Generators , Mach number , Polishing

Effects of Bowed Stators on a Transonic Fan With Distorted Inlet

Peng Sun, Ji’ang Han, Jingjun Zhong, Liquan Tao, Muxiao Yang, Yang Yu

GT 2008; 1871-1879https://doi.org/10.1115/GT2008-50523

Abstract

View Articletitled, Effects of Bowed Stators on a Transonic Fan With Distorted Inlet

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Topics: Stators , Flow (Dynamics) , Blades , Design , Rotors , Boundary-value problems , Compressors , Computer software , Navier-Stokes equations , Pressure

The Effects of IGV Wake Impingement on the Boundary Layer and the Near-Wake of a Rotor Blade

Francesco Soranna, Yi-Chih Chow, Oguz Uzol, Joseph Katz

GT 2008; 1881-1894https://doi.org/10.1115/GT2008-50598

Abstract

View Articletitled, The Effects of IGV Wake Impingement on the Boundary Layer and the Near-Wake of a Rotor Blade

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Topics: Blades , Boundary layers , Inlet guide vanes , Rotors , Wakes , Momentum , Turbulence , Flow (Dynamics) , Shear (Mechanics) , Suction

Aerothermal Performance of Streamwise and Compound Angled Pulsating Film Cooling Jets

Vipluv Aga, Michel Mansour, Reza S. Abhari

GT 2008; 1895-1907https://doi.org/10.1115/GT2008-50678

Abstract

View Articletitled, Aerothermal Performance of Streamwise and Compound Angled Pulsating Film Cooling Jets

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Topics: Film cooling , Jets , Entropy , Flow (Dynamics) , Pressure , Temperature , Density , Flat plates , Geometry , Indium compounds

Unsteady CFD Investigation on Inlet Distortion in a Centrifugal Compressor

Armin Zemp, Albert Kammerer, Reza S. Abhari

GT 2008; 1909-1919https://doi.org/10.1115/GT2008-50744

Abstract

View Articletitled, Unsteady CFD Investigation on Inlet Distortion in a Centrifugal Compressor

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Topics: Compressors , Computational fluid dynamics , Blades , Flow (Dynamics) , Boundary-value problems , Computation , Ducts , Engineering simulation , Failure , Fluid dynamics

Effects of Rotating Blade Wakes on Separation and Pressure Recovery in Turbine Exhaust Diffusers

Olaf Sieker, Joerg R. Seume

GT 2008; 1921-1931https://doi.org/10.1115/GT2008-50788

Abstract

View Articletitled, Effects of Rotating Blade Wakes on Separation and Pressure Recovery in Turbine Exhaust Diffusers

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Topics: Diffusers , Exhaust systems , Pressure , Rotating blades , Separation (Technology) , Turbines , Wakes , Flow (Dynamics) , Rotors , Wheels

Influence of Wake Structure on Unsteady Flow in an LP Turbine Blade Passage

S. Sarkar

GT 2008; 1933-1943https://doi.org/10.1115/GT2008-50809

Abstract

View Articletitled, Influence of Wake Structure on Unsteady Flow in an LP Turbine Blade Passage

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Topics: Turbine blades , Unsteady flow , Wakes , Pressure , Shear (Mechanics) , Suction , Boundary layers , Cascades (Fluid dynamics) , Chords (Trusses) , Cylinders

The Application of Flow Control to an Aft-Loaded Low Pressure Turbine Cascade With Unsteady Wakes

Jeffrey P. Bons, Jon Pluim, Kyle Gompertz, Matthew Bloxham, John P. Clark

GT 2008; 1945-1957https://doi.org/10.1115/GT2008-50864

Abstract

View Articletitled, The Application of Flow Control to an Aft-Loaded Low Pressure Turbine Cascade With Unsteady Wakes

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Topics: Cascades (Fluid dynamics) , Flow control , Pressure , Turbines , Wakes , Separation (Technology) , Flow (Dynamics) , Blades , Shear (Mechanics) , Chords (Trusses)

The Unsteady Loss in One-Stage Transonic Compressor Under Peak Efficiency and Near Stall Conditions

Yutao Sun, Yu-Xin Ren, Song Fu, Aspi R. Wadia

GT 2008; 1959-1971https://doi.org/10.1115/GT2008-51019

Abstract

View Articletitled, The Unsteady Loss in One-Stage Transonic Compressor Under Peak Efficiency and Near Stall Conditions

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Topics: Compressors , Flow (Dynamics) , Leakage , Blades , Boundary layers , Reynolds-averaged Navier–Stokes equations , Rotors , Stators , Suction

An Experimental Study of Vane Clocking Effects on Embedded Compressor Stage Performance

Nicole L. Key, Patrick B. Lawless, Sanford Fleeter

GT 2008; 1973-1984https://doi.org/10.1115/GT2008-51087

Abstract

View Articletitled, An Experimental Study of Vane Clocking Effects on Embedded Compressor Stage Performance

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Topics: Compressors , Stators , Wakes , Design , Inlet guide vanes , Blades , Diluents , High cycle fatigue , Indexing (Machining) , Noise (Sound)

Effects of Inlet Conditions on the Turbine Performance of a Radial Turbine

Fredrik Hellstrom, Laszlo Fuchs

GT 2008; 1985-2001https://doi.org/10.1115/GT2008-51088

Abstract

View Articletitled, Effects of Inlet Conditions on the Turbine Performance of a Radial Turbine

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Topics: Turbines , Inflow , Engines , Flow (Dynamics) , Turbulence , Vortices , Cycles , Exhaust manifolds , Geometry , Unsteady flow

An Investigation of the Flow Physics of Vane Clocking Using Unsteady Flow Measurements

Nicole L. Key, Patrick B. Lawless, Sanford Fleeter

GT 2008; 2003-2014https://doi.org/10.1115/GT2008-51091

Abstract

View Articletitled, An Investigation of the Flow Physics of Vane Clocking Using Unsteady Flow Measurements

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Topics: Flow (Dynamics) , Physics , Unsteady flow , Wakes , Stators , Boundary layers , Rotors , Compressors , Design , Separation (Technology)

The Influence of the History of Thermal Expansion on the Axial Turbine Characteristic

Valentin Silivestru, Valeriu A. Vilag, Romulus Petcu, Jeni A. Popescu

GT 2008; 2015-2022https://doi.org/10.1115/GT2008-51098

Abstract

View Articletitled, The Influence of the History of Thermal Expansion on the Axial Turbine Characteristic

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Topics: Thermal expansion , Turbines , Gas turbines , Computer simulation , Turbine blades , Temperature , Blades , Design , Dynamic response , Manufacturing

An Experimental Investigation of Passive Control Device: Blade Wake Interaction on a Ultra High Lift Turbine Profile

Daniele Simoni, Marina Ubaldi, Pietro Zunino, Francesco Bertini, Ennio Spano

GT 2008; 2023-2033https://doi.org/10.1115/GT2008-51194

Abstract

View Articletitled, An Experimental Investigation of Passive Control Device: Blade Wake Interaction on a Ultra High Lift Turbine Profile

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Topics: Blades , Passive control , Turbines , Wakes , Boundary layers , Reynolds number , Separation (Technology) , Aerodynamics , Cascades (Fluid dynamics) , Fluctuations (Physics)

A High-Order LES Turbulent Model to Study Unsteady Flow Characteristics in a High Pressure Turbine Cascade

Tomohiko Jimbo, Debasish Biswas, Yasuyuki Yokono, Yoshiki Niizeki

GT 2008; 2035-2044https://doi.org/10.1115/GT2008-51458

Abstract

View Articletitled, A High-Order LES Turbulent Model to Study Unsteady Flow Characteristics in a High Pressure Turbine Cascade

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Topics: Cascades (Fluid dynamics) , High pressure (Physics) , Turbines , Turbulence , Unsteady flow , Pressure , Vortices , Flow (Dynamics) , Blades , Numerical analysis

Rotating Stall Inception From Spike and Rotating Instability in a Variable-Pitch Axial-Flow Fan

Takahiro Nishioka, Toshio Kanno, Hiroshi Hayami

GT 2008; 2045-2056https://doi.org/10.1115/GT2008-51466

Abstract

View Articletitled, Rotating Stall Inception From Spike and Rotating Instability in a Variable-Pitch Axial-Flow Fan

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Topics: Axial flow , Stall inception , Separation (Technology) , Design , Blades , Vortices , Flow (Dynamics) , Rotors , Leakage , Leakage flows

Unsteady Simulations for an Advanced-Louver Cooling Scheme

Chad X.-Z. Zhang, Sung In Kim, Ibrahim G. Hassan

GT 2008; 2057-2066https://doi.org/10.1115/GT2008-51477

Abstract

View Articletitled, Unsteady Simulations for an Advanced-Louver Cooling Scheme

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Topics: Cooling , Simulation , Flow (Dynamics) , Turbulence , Computers , Coolants , Eddies (Fluid dynamics) , Flat plates , Fluctuations (Physics) , Reynolds number

Pre-Stall Instability Distribution Over a Transonic Compressor Rotor

A. J. Gannon, G. V. Hobson

GT 2008; 2067-2076https://doi.org/10.1115/GT2008-51512

Abstract

View Articletitled, Pre-Stall Instability Distribution Over a Transonic Compressor Rotor

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Topics: Compressors , Rotors , Blades , Steady state , Flow (Dynamics) , Probes , Shock (Mechanics) , Suction , Wake turbulence

Design Methods and CFD Modeling for Turbomachinery

Application of Delayed Detached Eddy Simulation and RANS to Compressor Cascade Flow

Chunwei Gu, Meilan Chen, Xuesong Li, Fan Feng

GT 2008; 2077-2083https://doi.org/10.1115/GT2008-50040

Abstract

View Articletitled, Application of Delayed Detached Eddy Simulation and RANS to Compressor Cascade Flow

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Topics: Compressors , Eddies (Fluid dynamics) , Flow (Dynamics) , Reynolds-averaged Navier–Stokes equations , Simulation , Delay differential equations , Calibration , Cascades (Fluid dynamics) , Computational fluid dynamics , Modeling

On the Role of the Deterministic and Circumferential Stresses in Throughflow Calculations

J.-F. Simon, O. Le´onard

GT 2008; 2085-2099https://doi.org/10.1115/GT2008-50119

Abstract

View Articletitled, On the Role of the Deterministic and Circumferential Stresses in Throughflow Calculations

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Topics: Hoop stress , Blades , Flow (Dynamics) , Stress , Navier-Stokes equations , Approximation , Compressors , Databases , Turbines , Turbulent diffusion

On the Coupling of Designer Experience and Modularity in the Aerothermal Design of Turbomachinery

Jerome P. Jarrett, Tiziano Ghisu, Geoffrey T. Parks

GT 2008; 2101-2110https://doi.org/10.1115/GT2008-50131

Abstract

View Articletitled, On the Coupling of Designer Experience and Modularity in the Aerothermal Design of Turbomachinery

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Topics: Design , Turbomachinery , Compression , Compressors , Engineers , Machinery , Modeling , Performance , Turbofans

The Effect of Specific Heat Ratio on the Performance of Compressible Flow Turbo-Machines

Theodor W. von Backstro¨m

GT 2008; 2111-2117https://doi.org/10.1115/GT2008-50183

Abstract

View Articletitled, The Effect of Specific Heat Ratio on the Performance of Compressible Flow Turbo-Machines

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Topics: Compressible flow , Specific heat , Turbomachinery , Gases , Machinery , Carbon dioxide , Density , Engineering prototypes , Impellers , Mach number

A New Streamline Curvature Throughflow Method for Radial Turbomachinery

Michael Casey, Chris Robinson

GT 2008; 2119-2130https://doi.org/10.1115/GT2008-50187

Abstract

View Articletitled, A New Streamline Curvature Throughflow Method for Radial Turbomachinery

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Topics: Turbomachinery , Flow (Dynamics) , Blades , Compressors , Computational methods , Computer simulation , Curved walls , Design , Fluids , Gases

Prediction of Inter-Turbine Burner (ITB) Performance With Curved Radial Vane Cavity at Various Equivalence Ratios

Hugh J. Thornburg, Balu Sekar, Joseph Zelina, Charlie Lin, Richard Holder

GT 2008; 2131-2139https://doi.org/10.1115/GT2008-50192

Abstract

View Articletitled, Prediction of Inter-Turbine Burner (ITB) Performance With Curved Radial Vane Cavity at Various Equivalence Ratios

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Topics: Cavities , Turbines , Combustion chambers , Combustion systems , Design , Flames , Flow (Dynamics) , Fuels , Pressure , Propulsion systems

Adjoint Aerodynamic Design Optimization for Blades in Multi-Stage Turbomachines: Part I—Methodology and Verification

D. X. Wang, L. He

GT 2008; 2141-2156https://doi.org/10.1115/GT2008-50208

Abstract

View Articletitled, Adjoint Aerodynamic Design Optimization for Blades in Multi-Stage Turbomachines: Part I—Methodology and Verification

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Topics: Blades , Design , Optimization , Turbomachinery , Compressors , Finite difference methods , Shape design , Shapes

Adjoint Aerodynamic Design Optimization for Blades in Multi-Stage Turbomachines: Part II—Validation and Application

D. X. Wang, L. He, Y. S. Li, R. G. Wells, T. Chen

GT 2008; 2157-2169https://doi.org/10.1115/GT2008-50209

Abstract

View Articletitled, Adjoint Aerodynamic Design Optimization for Blades in Multi-Stage Turbomachines: Part II—Validation and Application

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Topics: Blades , Design , Optimization , Turbomachinery , Compressors , Flow (Dynamics) , Rotors , Inlet guide vanes , NASA , Pressure

Inverse 3D Camber-Line Calculation Tool INCA-3D

C. Clemen

GT 2008; 2171-2181https://doi.org/10.1115/GT2008-50253

Abstract

View Articletitled, Inverse 3D Camber-Line Calculation Tool INCA-3D

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Topics: Aircraft engines , Annulus , Axial flow , Blades , Chords (Trusses) , Compressors , Computer software , Design , Flow (Dynamics) , FORTRAN

Stacking and Thickness Optimization of a Compressor Blade Using Weighted Average Surrogate Model

Abdus Samad, Kwang-Yong Kim

GT 2008; 2183-2195https://doi.org/10.1115/GT2008-50262

Abstract

View Articletitled, Stacking and Thickness Optimization of a Compressor Blade Using Weighted Average Surrogate Model

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Topics: Blades , Compressors , Optimization , Pressure , Design , Turbomachinery , Errors , Experimental design , Optimization algorithms , Pareto optimization