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Volume 8: Turbomachinery, Parts A, B, and C

Turbomachinery

Axial Flow Fan and Compressor Aerodynamics

Study on the Impact of Fouling on Axial Compressor Stage

Shaowen Chen, Chen Zhang, Hui Shi, Songtao Wang, Zhongqi Wang

GT 2012; 1-8https://doi.org/10.1115/GT2012-68041

Abstract

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Topics: Compressors , Surface roughness , Flow (Dynamics) , Computational fluid dynamics , Computer simulation , Delays , Energy (Physics) , NASA , Pressure , Reynolds number

Experimental Investigation of the Performance of Different Bleed Air System Designs

V. Peltier, K. Dullenkopf, H.-J. Bauer

GT 2012; 9-21https://doi.org/10.1115/GT2012-68242

Abstract

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Topics: Compressors , Computational fluid dynamics , Cooling , Databases , Engine design , Engines , Flow (Dynamics) , Fluids , Fuel consumption , Manifolds

An Experimental Verification of a New Design for Cantilevered Stators With Large Hub Clearances

Martin Lange, Konrad Vogeler, Ronald Mailach, Sergio Elorza-Gomez

GT 2012; 23-34https://doi.org/10.1115/GT2012-68344

Abstract

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Topics: Compressors , Design , Stators

Compressor Efficiency Variation With Rotor Tip Gap From Vanishing to Large Clearance

S. Sakulkaew, C. S. Tan, E. Donahoo, C. Cornelius, M. Montgomery

GT 2012; 35-48https://doi.org/10.1115/GT2012-68367

Abstract

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Topics: Clearances (Engineering) , Compressors , Rotors , Flow (Dynamics) , Blades , Computer simulation , Industrial gases , Leakage , Leakage flows , Pressure

Performance and Boundary Layer Development of a High Turning Compressor Cascade at Sub- and Supercritical Flow Conditions

Christoph Bode, Dragan Kožulović, Udo Stark, Heinz Hoheisel

GT 2012; 49-61https://doi.org/10.1115/GT2012-68382

Abstract

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Topics: Boundary layers , Cascades (Fluid dynamics) , Compressors , Flow (Dynamics) , Turning , Mach number , Blades , Density , Engineering simulation , Modeling

Effect of Speed Ratio and Axial Spacing Variations on the Performance of a High Aspect Ratio, Low Speed Contra-Rotating Fan

Chetan S. Mistry, A. M. Pradeep

GT 2012; 63-71https://doi.org/10.1115/GT2012-68383

Abstract

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Topics: Aerodynamics , Blades , Chords (Trusses) , Computer simulation , Design , Flow (Dynamics) , Noise (Sound) , Physics , Pressure , Reynolds number

A Physical Model for the Tip Vortex Loss: Experimental Validation and Scaling Method

Sascha Karstadt, Peter F. Pelz

GT 2012; 73-81https://doi.org/10.1115/GT2012-68397

Abstract

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Topics: Wake turbulence , Clearances (Engineering) , Vortices , Blades , Flow (Dynamics) , Turbomachinery , Fluids , Pressure , Rotating blades , Suction

The Effect of Two Different Endwall-Penny Concepts for Variable Stator Vanes in a Compressor Cascade

Marcel Gottschall, Konrad Vogeler, Ronald Mailach

GT 2012; 83-93https://doi.org/10.1115/GT2012-68404

Abstract

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Topics: Cascades (Fluid dynamics) , Compressors , Stators

Study of Convective Flow Effects in Endwall Casing Treatments in Transonic Compressor Rotors

Chunill Hah, Martin Mueller, Heinz-Peter Schiffer

GT 2012; 95-106https://doi.org/10.1115/GT2012-68411

Abstract

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Topics: Compressors , Flow (Dynamics) , Rotors , Unsteady flow , Oscillations , Pressure , Shock (Mechanics) , Transients (Dynamics) , Clearances (Engineering) , Convection

An Experimental Investigation About the Effect of the Partial Casing Treatment on a Transonic Axial-Flow Compressor Performance Under Inlet Distortion

Maoyi Li, Wei Yuan, Xizhen Song, Yajun Lu, Zhiping Li, Shaobin Li

GT 2012; 107-116https://doi.org/10.1115/GT2012-68442

Abstract

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Topics: Axial flow , Compressors , Flow (Dynamics) , Annulus , Pressure

High Pressure Compressor Stabilization by Controlled Pulsed Injection

Sven-Jürgen Hiller, Jakob Hermann, Robert Widhopf-Fenk

GT 2012; 117-124https://doi.org/10.1115/GT2012-68460

Abstract

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Topics: Compressors , High pressure (Physics) , Flow (Dynamics) , Compressed air , Control systems , Stability , Surges , Valves

Design and Development of a 14-Stage Axial Compressor for Industrial Gas Turbine

Takuya Ikeguchi, Akinori Matsuoka, Yusuke Sakai, Yoshinobu Sakano, Kenichiro Yoshiura

GT 2012; 125-134https://doi.org/10.1115/GT2012-68524

Abstract

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Topics: Compressors , Design , Industrial gases , Turbines , Airfoils , Computational fluid dynamics , Gas turbines , Axial flow , Blades , Design methodology

Numerical Studies on Improving Performance of Rotor-67 by Blended Blade and EndWall Technique

Lucheng Ji, Yong Tian, Weiwei Li, Weilin Yi, Quan Wen

GT 2012; 135-145https://doi.org/10.1115/GT2012-68535

Abstract

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Topics: Blades , Rotors , Corners (Structural elements) , Separation (Technology) , Suction , Engines , NASA , Thrust , Turbomachinery , Vortices

Three-Dimensional Flow Through a Compressor Cascade With Circulation Control

S. Fischer, L. Müller, H. Saathoff, D. Kožulović

GT 2012; 147-158https://doi.org/10.1115/GT2012-68593

Abstract

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Topics: Cascades (Fluid dynamics) , Compressors , Flow (Dynamics) , Blades , Navier-Stokes equations , Particulate matter , Probes , Wind tunnels

The Sensitivity of 2D Compressor Incidence Range to In-Service Geometric Variation

Martin N. Goodhand, Robert J. Miller, Hang W. Lung

GT 2012; 159-170https://doi.org/10.1115/GT2012-68633

Abstract

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Topics: Compressors , Blades , Design , Engines , Flow (Dynamics) , High pressure (Physics)

Investigation of the Influence of Hub Gap Size to the Performance of a Subsonic Compressor Stator

Ke Shi, Haixin Chen, Song Fu, Ruben van Rennings, Frank Thiele

GT 2012; 171-181https://doi.org/10.1115/GT2012-68713

Abstract

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Topics: Compressors , Stators , Flow (Dynamics) , Leakage flows , Separation (Technology) , Vortices , Blades , Inlet guide vanes , Pressure , Boundary-value problems

Reverse Flow Turbine-Like Operation of an Axial Flow Compressor

A. Gill, T. W. von Backström, T. M. Harms

GT 2012; 183-195https://doi.org/10.1115/GT2012-68783

Abstract

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Topics: Axial flow , Flow (Dynamics) , Turbines , Blades , Rotors , Compressors , Pressure , Stators , Wakes , Approximation

The Effect of Tip Clearance on the Performance of Contra-Rotating Compressor

Limin Gao, Xiaojun Li, Xudong Feng, Bo Liu

GT 2012; 197-206https://doi.org/10.1115/GT2012-68801

Abstract

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Topics: Clearances (Engineering) , Compressors , Pressure , Rotors , Aircraft engines , Computation , Flow (Dynamics) , Thrust , Weight (Mass)

The Effect of Speed Ratio on the First Rotating Stall Stage in Contra-Rotating Compressor

Limin Gao, Xiaojun Li, Jian Xie, Bo Liu

GT 2012; 207-216https://doi.org/10.1115/GT2012-68802

Abstract

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Topics: Compressors , Rotors , Flow (Dynamics) , Leakage , Aircraft engines , Blades , Computation , Pressure , Thrust , Weight (Mass)

CREATE: Advanced CFD for HPC Performance Improvement

A. Pesteil, D. Cellier, O. Domercq, V. Perrot, J. C. Boniface

GT 2012; 217-228https://doi.org/10.1115/GT2012-68844

Abstract

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Topics: Computational fluid dynamics , Flow (Dynamics) , Compressors , Optimization , High pressure (Physics) , Simulation , Airfoils , Cavities , Design , Generators

An Experimental Study of Loss Sources in a Fan Operating With Continuous Inlet Stagnation Pressure Distortion

E. J. Gunn, S. E. Tooze, C. A. Hall, Y. Colin

GT 2012; 229-240https://doi.org/10.1115/GT2012-68888

Abstract

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Topics: Pressure , Annulus , Design , Engines , Flow (Dynamics) , Rotors , Aircraft propulsion , Boundary layers , Flow separation , Fluid mechanics

Multi-Objective Constrained Aero-Mechanical Optimization of an Axial Compressor Transonic Blade

Pio Astrua, Stefano Piola, Andrea Silingardi, Federico Bonzani

GT 2012; 241-252https://doi.org/10.1115/GT2012-68993

Abstract

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Topics: Blades , Compressors , Optimization , Design , Artificial neural networks , Algorithms , Boundary layers , Computational fluid dynamics , Databases , Flow (Dynamics)

Experimental and Numerical Study of a Subsonic Aspirated Cascade

Antoine Godard, François Bario, Stéphane Burguburu, Francis Lebœuf

GT 2012; 253-267https://doi.org/10.1115/GT2012-69011

Abstract

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Topics: Blades , Cascades (Fluid dynamics) , Design , Particulate matter

Robust Design Strategies for Heavy Duty Axial Compressor Inlet Strut

Marco Cioffi, Enrico Puppo, Andrea Silingardi, Mauro Macciò

GT 2012; 269-278https://doi.org/10.1115/GT2012-69015

Abstract

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Topics: Compressors , Design , Struts (Engineering) , Blades , Flow (Dynamics) , Boundary-value problems , Ducts , Optimization , Power stations

Analyzing and Optimizing Geometrically Degraded Transonic Fan Blades by Means of 2D and 3D Simulations and Cascade Measurements

A. Giebmanns, R. Schnell, W. Steinert, A. Hergt, E. Nicke, C. Werner-Spatz

GT 2012; 279-288https://doi.org/10.1115/GT2012-69064

Abstract

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Topics: Blades , Cascades (Fluid dynamics) , Engineering simulation , Simulation , Engines , Airfoils , Chords (Trusses) , Erosion , Liquid crystals , Optimization

Recent Advances in Manufacturing of Riblets on Compressor Blades and Their Aerodynamic Impact

Christoph Lietmeyer, Berend Denkena, Rainer Kling, Thomas Krawczyk, Ludger Overmeyer, Eduard Reithmeier, Renke Scheuer, Taras Vynnyk, Bodo Wojakowski, Joerg R. Seume

GT 2012; 289-300https://doi.org/10.1115/GT2012-69067

Abstract

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Topics: Blades , Compressors , Manufacturing , Grinding , Lasers , Skin friction (Fluid dynamics) , Cascades (Fluid dynamics) , Computer simulation , Flat plates , Geometry

Development and Applications of a Stage Stacking Procedure

Sameer Kulkarni, Mark L. Celestina, John J. Adamczyk

GT 2012; 301-310https://doi.org/10.1115/GT2012-69115

Abstract

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Topics: Collapse , Compressors , Design , Flow (Dynamics) , Gas turbines , Pressure , Stress , Turbines

Characteristics of the Tip Leakage Vortex in a Low-Speed Axial Compressor With Different Rotor Tip Gaps

Zhibo Zhang, Xianjun Yu, Baojie Liu

GT 2012; 311-322https://doi.org/10.1115/GT2012-69148

Abstract

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Topics: Compressors , Leakage , Rotors , Vortices , Blades , Chords (Trusses) , Flow (Dynamics) , Pressure , Trajectories (Physics) , Clearances (Engineering)

Corner Separation Control in a Highly Loaded Compressor Cascade Using Plasma Aerodynamic Actuation

Yun Wu, Xiao-hu Zhao, Ying-hong Li, Jun Li

GT 2012; 323-332https://doi.org/10.1115/GT2012-69196

Abstract

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Topics: Cascades (Fluid dynamics) , Compressors , Corners (Structural elements) , Plasmas (Ionized gases) , Separation (Technology) , Suction , Pressure , Flow control , Aircraft , Blades

Characteristics of Tip-Leakage Flow at High Stagger-Angle Setting for Rotor Blade in an Axial Flow Fan

Takahiro Nishioka, Masayoshi Joko

GT 2012; 333-341https://doi.org/10.1115/GT2012-69204

Abstract

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Topics: Axial flow , Blades , Flow (Dynamics) , Leakage , Rotors , Clearances (Engineering) , Vortices , Pressure , Leakage flows , Chords (Trusses)

The Impact of Leakage Flow Tangential Velocity on Secondary Losses in a Shrouded Compressor Cascade

J. W. Kim, J. S. Lee, S. J. Song, T. Kim, H-. W. Shin

GT 2012; 343-352https://doi.org/10.1115/GT2012-69217

Abstract

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Topics: Cascades (Fluid dynamics) , Compressors , Leakage flows , Vortices , Flow (Dynamics) , Suction , Blades , Cavities , Corners (Structural elements) , Pressure

Experimental Investigation on Tip Clearance Flow of Compressor Cascade With Blade Tip Winglet

Shaobing Han, Jingjun Zhong, Huawei Lu, Xiaoxu Kan, Haiyang Gao

GT 2012; 353-360https://doi.org/10.1115/GT2012-69226

Abstract

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Topics: Blades , Cascades (Fluid dynamics) , Clearances (Engineering) , Compressors , Flow (Dynamics) , Pressure , Suction , Leakage , Leakage flows , Passive control

Multi Disciplinary Design Optimization and Performance Evaluation of a Single-Stage Transonic Axial Compressor

Young-Seok Kang, Tae-Choon Park, Soo-Seok Yang, Sae-Il Lee, Dong-Ho Lee

GT 2012; 361-369https://doi.org/10.1115/GT2012-69252

Abstract

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Topics: Compressors , Design , Optimization , Performance evaluation , Blades , Flow (Dynamics) , Safety , Rotors , Computational fluid dynamics , Pressure

Design of Compressor Blades Considering Efficiency and Stability Using CFD Based Optimization

Lars Ellbrant, Lars-Erik Eriksson, Hans Mårtensson

GT 2012; 371-382https://doi.org/10.1115/GT2012-69272

Abstract

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Topics: Blades , Compressors , Computational fluid dynamics , Design , Optimization , Stability , Design methodology , Tradeoffs , Flight , Fuel consumption

Effects of Using Different Arrangements of Fanlets on Performance of Twisted Axial Aerial Fans

Morteza Abbaszadeh, Mina Shahrooz, Bijan Farhanieh

GT 2012; 383-390https://doi.org/10.1115/GT2012-69285

Abstract

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Topics: Fans , Blades , Aerodynamics , Air conditioning , Computational fluid dynamics , Fluid-dynamic forces , Machinery , Modeling , Performance , Propulsion

Numerical Research on the Flow Field and Performance of a Ram-Rotor and a Scrampressor

Ling Yang, Jingjun Zhong, Ji-ang Han

GT 2012; 391-398https://doi.org/10.1115/GT2012-69358

Abstract

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Topics: Flow (Dynamics) , Rotors , Compression , Shock waves , Pressure , Design , Diffusers , Flow separation , Aircraft , Design methodology

Influence of Working Fluid Composition on the Performance of Turbomachinery in Semi-Closed Gas Turbine Cycles

Roberto Canepa, Antonio Satta

GT 2012; 399-406https://doi.org/10.1115/GT2012-69453

Abstract

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Topics: Cycles , Fluids , Gas turbines , Turbomachinery , Axial flow , Flue gases , Compressors , Computational fluid dynamics , Equilibrium (Physics) , Flow (Dynamics)

Optimised Aerodynamic Design of an OGV With Reduced Blade Count for Low Noise Aircraft Engines

Georg Kröger, Rainer Schnell, Nicholas D. Humphreys

GT 2012; 407-418https://doi.org/10.1115/GT2012-69459

Abstract

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Topics: Aircraft engines , Blades , Design , Noise (Sound) , Optimization , Aircraft , Chain , Engines , Flow (Dynamics) , Flow separation

Experimental Investigation on the Performance of a Compressor Airfoil in Droplet Laden Flow

Birger Ober, Franz Joos

GT 2012; 419-428https://doi.org/10.1115/GT2012-69464

Abstract

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Topics: Airfoils , Compressors , Drops , Flow (Dynamics) , Air flow , Gas turbines , Aerodynamics , Compression , Stability , Water

On the Use of Synthetic Jets in Transonic Compressors

R. Biollo, E. Staffieri, E. Benini

GT 2012; 429-438https://doi.org/10.1115/GT2012-69476

Abstract

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Topics: Compressors , Jets , Blades , Momentum , Rotors , Suction , Boundary layers , Computational fluid dynamics , Cycles , Shock (Mechanics)

Active Flow Control Techniques on a Stator Compressor Cascade: A Comparison Between Synthetic Jet and Plasma Actuators

Maria Grazia De Giorgi, Stefania Traficante, Carla De Luca, Daniela Bello, Antonio Ficarella

GT 2012; 439-450https://doi.org/10.1115/GT2012-69535

Abstract

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Topics: Actuators , Cascades (Fluid dynamics) , Compressors , Flow control , Plasmas (Ionized gases) , Stators , Airfoils , Boundary layers , Electrodes , Flow (Dynamics)

Modeling of Discrete Tip Injection in a Two-Dimensional Streamline Curvature Method

Roland Matzgeller, Richard Pichler

GT 2012; 451-460https://doi.org/10.1115/GT2012-69554

Abstract

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Topics: Compressors , Design , Flow (Dynamics) , Fluids , Jets , Modeling , Rotors , Stability

Numerical Investigation of the Behavior of Tip Leakage Flow in a Low-Speed Axial Compressor Rotor at Near-Stall Condition

Zhenzhen Duan, Yangwei Liu, Lipeng Lu

GT 2012; 461-471https://doi.org/10.1115/GT2012-69635

Abstract

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Topics: Compressors , Leakage flows , Rotors , Vortices , Flow (Dynamics) , Leakage , Engineering simulation , Simulation , Stall inception , Corners (Structural elements)

Flow Mechanics in Tandem Rotors

Yuping Qian, Zhiping Li, Yajun Lu, Qiushi Li

GT 2012; 473-478https://doi.org/10.1115/GT2012-69665

Abstract

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Topics: Flow (Dynamics) , Rotors , Cascades (Fluid dynamics) , Design , Wakes , Stators , Turning angles

Performance Limits of Axial Compressor Stages

D. K. Hall, E. M. Greitzer, C. S. Tan

GT 2012; 479-489https://doi.org/10.1115/GT2012-69709

Abstract

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Topics: Compressors , Cycles , Design , Boundary layer turbulence , Gas turbines , Machinery , Thermal efficiency

Numerical and Experimental Investigations of Steady and Unsteady Characteristics of a Counter Rotating Fan Model With Thickened Blades of Working Wheel

Victor Mileshin, Igor Brailko, Alexander Stepanov, Vladimir Korzhnev

GT 2012; 491-500https://doi.org/10.1115/GT2012-69734

Abstract

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Topics: Blades , Wheels , Flow (Dynamics) , Rotors , Anechoic chambers , Approximation , Composite materials , Mechanical properties , Computer simulation , Computer software

The Effect of Four Part Gap Geometry Configurations for Variable Stator Vanes in a Compressor Cascade

Marcel Gottschall, Konrad Vogeler, Ronald Mailach

GT 2012; 501-510https://doi.org/10.1115/GT2012-69757

Abstract

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Topics: Cascades (Fluid dynamics) , Compressors , Geometry , Stators

Effects of Using Hydrogen-Rich Syngas in Industrial Gas Turbines While Maintaining Fuel Flexibility on a Multistage Axial Compressor Design

Pascal Nucara, Abdulnaser Sayma

GT 2012; 511-522https://doi.org/10.1115/GT2012-69780

Abstract

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Topics: Compressors , Design , Fuels , Hydrogen , Industrial gases , Syngas , Turbines , Blades , Flow (Dynamics) , Geometry

Angle-of-Attack Effects on Counter-Rotating Propellers at Take-Off

Tobias Brandvik, Cesare Hall, Anthony B. Parry

GT 2012; 523-534https://doi.org/10.1115/GT2012-69901

Abstract

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Topics: Aircraft , Annulus , Computational fluid dynamics , Design , Engineering simulation , Engines , Flow (Dynamics) , Fuel consumption , Noise (Sound) , Propellers

The Effect of Reynolds Number on a Transonic Swept Fan OGV in a Small Turbofan Engine

Toyotaka Sonoda, Toshiyuki Arima, Giles Endicott, Markus Olhofer, Bernhard Sendhoff

GT 2012; 535-541https://doi.org/10.1115/GT2012-69956

Abstract

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Topics: Engines , Reynolds number , Turbofans , Computational fluid dynamics , Flow (Dynamics) , Guide vanes

Radial Turbomachinery Aerodynamics

The Design Space Boundaries for High Flow Capacity Centrifugal Compressors

Daniel Rusch, Michael Casey

GT 2012; 543-556https://doi.org/10.1115/GT2012-68105

Abstract

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Topics: Compressors , Design , Flow (Dynamics) , Boundary-value problems , Geometry , Impellers , Mach number , Pressure , Risk , Turbomachinery

Aerodynamic and Structure Considerations in Centrifugal Compressor Design: Blade Lean Effects

C. Xu, R. S. Amano

GT 2012; 557-568https://doi.org/10.1115/GT2012-68207

Abstract

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Topics: Blades , Compressors , Design , Aerodynamics , Optimization , Reliability , Wheels , Engineering design processes , Flow (Dynamics) , Structural design

Experimental Investigation of High Pressure Ratio Centrifugal Compressor With Axisymmetric and Non-Axisymmetric Recirculation Device

Hideaki Tamaki, Xinqian Zheng, Yangjun Zhang

GT 2012; 569-581https://doi.org/10.1115/GT2012-68219

Abstract

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Topics: Compressors , High pressure (Physics) , Flow (Dynamics) , Impellers , Blades , Turbochargers , Pressure drop , Cavities , Dimensional analysis , Geometry

Performance Uncertainty Quantification for Centrifugal Compressors: Part 2—Flange to Flange Variability

Sivasubramaniyan Sankaran, Giuseppe Sassanelli, Giuseppe Iurisci, Andrea Panizza

GT 2012; 583-591https://doi.org/10.1115/GT2012-68220

Abstract

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Topics: Compressors , Flanges , Uncertainty quantification , Design , Experimental design , Manufacturing , Uncertainty , Impellers , Leakage , Optimization

Cavity Flow Modeling in an Industrial Centrifugal Compressor Stage at Design and Off-Design Conditions

Emanuele Guidotti, Giovanni Naldi, Libero Tapinassi, Valliappan Chockalingam

GT 2012; 593-603https://doi.org/10.1115/GT2012-68288

Abstract

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Topics: Cavity flows , Compressors , Design , Modeling , Flow (Dynamics) , Cavities , Geometry , Leakage flows , Probes , Computational fluid dynamics

Numerical Investigation of Effects of Different Hub Tip Diameter Ratios on Aerodynamic Performance of Single Shaft Multistage Centrifugal Compression Systems

Thomas Ceyrowsky, Andre Hildebrandt

GT 2012; 605-615https://doi.org/10.1115/GT2012-68318

Abstract

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Topics: Compression , Compressors , Computational fluid dynamics , Design , Diffusion (Physics) , Flow (Dynamics) , Impellers , Mach number , Steady state

Aerodynamic Investigation on a 3D-Vaned Diffuser Applied on a High Flow 3D Impeller

H. Strohmeyer, A. Hildebrandt

GT 2012; 617-626https://doi.org/10.1115/GT2012-68327

Abstract

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Topics: Diffusers , Flow (Dynamics) , Impellers , Compressors , High pressure (Physics) , Separation (Technology)

Influence of the Swirling Flow in the Side Cavities of a High-Pressure Centrifugal Compressor on the Characteristics of Excited Acoustic Modes

N. Petry, S. König, F.-K. Benra

GT 2012; 627-639https://doi.org/10.1115/GT2012-68380

Abstract

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Topics: Acoustics , Cavities , Compressors , Fluctuations (Physics) , High pressure (Physics) , Pressure , Resonance , Rotors , Stators , Swirling flow

Experimental Study of the Effect of the Tip Clearance to the Diffuser Flow Field and Stage Performance of a Centrifugal Compressor

Ahti Jaatinen, Teemu Turunen-Saaresti, Aki Grönman, Pekka Röyttä, Jari Backman

GT 2012; 641-648https://doi.org/10.1115/GT2012-68445

Abstract

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Topics: Clearances (Engineering) , Compressors , Diffusers , Flow (Dynamics) , Pressure , Probes , Impellers , Blades , Temperature

Experimental Investigation of a Truncated Pipe Diffuser With a Tandem Deswirler in a Centrifugal Compressor Stage

Robert Kunte, Peter Jeschke, Caitlin Smythe

GT 2012; 649-660https://doi.org/10.1115/GT2012-68449

Abstract

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Topics: Compressors , Diffusers , Pipes , Flow (Dynamics) , Boundary-value problems , Design , High pressure (Physics) , Jet engines , Particulate matter , Pressure

Numerical Analysis of Overall Performance and Flow Phenomena of an Automatically Optimized Three-Dimensional Return Channel System for Multistage Centrifugal Compression Systems

A. Hildebrandt

GT 2012; 661-671https://doi.org/10.1115/GT2012-68559

Abstract

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Topics: Compression , Flow (Dynamics) , Numerical analysis , Blades , Aerodynamics , Design , Impellers , Pressure , Compressors , Computer-aided design

Numerical Investigation of the Flow in a Radial Vaned Diffuser Without and With Aspiration

A. Marsan, I. Trébinjac, S. Coste, G. Leroy

GT 2012; 673-684https://doi.org/10.1115/GT2012-68610

Abstract

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Topics: Diffusers , Flow (Dynamics) , Surges , Compressors , Corners (Structural elements) , Skin friction (Fluid dynamics) , Suction , Blades , Boundary layers , Clearances (Engineering)

Performance Improvement of Return Channel in Multistage Centrifugal Compressor Using Multi-Objective Optimization

Y. Nishida, H. Kobayashi, H. Nishida, K. Sugimura

GT 2012; 685-692https://doi.org/10.1115/GT2012-68671

Abstract

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Topics: Compressors , Pareto optimization , Flow (Dynamics) , Design , Pressure , Genetic algorithms , Optimization , Sensitivity analysis , Shapes , Testing performance

An Object-Oriented CFD Code for Optimization of High Pressure Ratio Compressors

Elmar Gröschel, Benjamin Rembold, Luca Mangani, Ernesto Casartelli

GT 2012; 693-701https://doi.org/10.1115/GT2012-68708

Abstract

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Topics: Compressors , Computational fluid dynamics , High pressure (Physics) , Optimization , Flow (Dynamics) , Algorithms , Compressible flow , Conceptual design , Cycles , Design

The Practical Design of Turbocharger Turbines Using a Throughflow-Based Optimisation Process

Graham D. Cox

GT 2012; 703-713https://doi.org/10.1115/GT2012-68795

Abstract

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Topics: Design , Optimization , Turbines , Turbochargers , Compressors , Certainty , Electric motors , Inertia (Mechanics) , Internal combustion engines , Turbomachinery

Aerodynamic Investigation of a Nozzle Clearance Effect on Radial Turbine Performance

M. Roumeas, S. Cros

GT 2012; 715-723https://doi.org/10.1115/GT2012-68835

Abstract

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Topics: Clearances (Engineering) , Nozzles , Turbines , Blades , Flow (Dynamics) , Vortices , Aerospace industry , Architecture , Chords (Trusses) , Compressors

Meanline Modeling of Ported Shroud Turbocharger Compressor

Xuwen Qiu, Eric M. Krivitzky, Peter Bollweg

GT 2012; 725-733https://doi.org/10.1115/GT2012-68915

Abstract

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Topics: Compressors , Modeling , Turbochargers , Design , Flow (Dynamics) , Computational fluid dynamics , Corporate average fuel economy , Diesel , Engineers , Fuel efficiency

The Effect of Tip Leakage Vortex for Operating Range Enhancement of Centrifugal Compressor

Isao Tomita, Seiichi Ibaraki, Masato Furukawa, Kazutoyo Yamada

GT 2012; 735-743https://doi.org/10.1115/GT2012-68947

Abstract

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Topics: Compressors , Leakage , Vortices , Flow (Dynamics) , Turbochargers , Blades , Engines , Fuel consumption , Geometry , Pressure

Numerical Assessment of Unsteady Flow Effects on a Nozzled Turbocharger Turbine

M. H. Padzillah, S. Rajoo, R. F. Martinez-Botas

GT 2012; 745-756https://doi.org/10.1115/GT2012-69062

Abstract

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Topics: Computational fluid dynamics , Pulsatile flow , Turbines , Turbochargers , Unsteady flow

An Analytical and Experimental Assessment of a Diffuser Flow Phenomenon as a Precursor to Stall

James M. Sorokes, Jorge E. Pacheco, Clementine Vezier, Syed Fakhri

GT 2012; 757-766https://doi.org/10.1115/GT2012-69122

Abstract

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Topics: Diffusers , Flow (Dynamics) , Computational fluid dynamics , Diffusion (Physics) , Momentum , Vaneless diffusers , Compressors , Impellers , Mach number , Testing

Impeller-Diffuser Interaction in Centrifugal Compressors

Chris Robinson, Michael Casey, Brad Hutchinson, Robin Steed

GT 2012; 767-777https://doi.org/10.1115/GT2012-69151

Abstract

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Topics: Compressors , Diffusers , Impellers , Rotors , Simulation , Stators , Transients (Dynamics) , Annulus , Blades , Computational fluid dynamics

Design Optimization and Experimental Verification of Centrifugal Compressors With Curvilinear Element Blades

Kazuyuki Sugimura, Hiromi Kobayashi, Hideo Nishida

GT 2012; 779-791https://doi.org/10.1115/GT2012-69162

Abstract

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Topics: Blades , Compressors , Design , Optimization , Diffusers , Impellers , Suction , Flow (Dynamics) , Engineering simulation , Genetic algorithms

Influence of Low-Solidity Cascade Diffuser on Spike Stall Inception in a Centrifugal Compressor

Satoshi Joukou, Yasushi Shinkawa, Toshio Kanno, Hideo Nishida, Takahiro Nishioka, Kiyotaka Hiradate

GT 2012; 793-802https://doi.org/10.1115/GT2012-69203

Abstract

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Topics: Cascades (Fluid dynamics) , Compressors , Diffusers , Stall inception , Flow (Dynamics) , Pressure , Surges , Flow separation , Wings , Impellers

Linear Stability Analysis of Turbo Heat Pumps

Jung Chan Park, Kil Young Kim, Jinhee Jeong, Seung Jin Song

GT 2012; 803-811https://doi.org/10.1115/GT2012-69251

Abstract

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Topics: Heat pumps , Stability , Turbochargers , Surges , Closed loop systems , Compressors , Fluids , Heat , Compression , Condensers (steam plant)

Numerical Investigation of the Effect of Rotor Blade Leading Edge Geometry on the Performance of a Variable Geometry Turbine

Lei Huang, Weilin Zhuge, Yangjun Zhang, Liaoping Hu, Di Yang, Jiawei Wang

GT 2012; 813-822https://doi.org/10.1115/GT2012-69267

Abstract

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Topics: Blades , Geometry , Rotors , Turbines , Flow (Dynamics) , Design , Computational fluid dynamics , Construction , Diesel engines , Emissions

Casing Treatment and Inlet Swirl of Centrifugal Compressors

Hua Chen, Vai-Man Lei

GT 2012; 823-830https://doi.org/10.1115/GT2012-69340

Abstract

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Topics: Compressors , Blades , Flow (Dynamics) , Impellers , Suction , Boundary layers , Cavities , Flow separation , Fluids , Shock waves

Experimental and Numerical Investigation of the Flow Field in the Radial Inlet of a Centrifugal Compressor

Fenghui Han, Datong Qi, Jiajian Tan, Li Wang, Yijun Mao

GT 2012; 831-845https://doi.org/10.1115/GT2012-69353

Abstract

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Topics: Compressors , Flow (Dynamics) , Computational fluid dynamics , Probes , Calibration , Computers , Data acquisition , Design , Geometry , Internal flow

Aerodynamic Investigation of a High Pressure Ratio Turbo-Expander for Organic Rankine Cycle Applications

Michele Marconcini, Filippo Rubechini, Andrea Arnone, Alberto Scotti Del Greco, Roberto Biagi

GT 2012; 847-856https://doi.org/10.1115/GT2012-69409

Abstract

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Topics: High pressure (Physics) , Organic Rankine cycle , Turbochargers , Flow (Dynamics) , Nozzles , Computational fluid dynamics , Design , Impellers , Inflow , Modeling

Map Width Enhancement Technique for a Turbocharger Compressor

Subenuka Sivagnanasundaram, Stephen Spence, Juliana Early

GT 2012; 857-869https://doi.org/10.1115/GT2012-69415

Abstract

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Topics: Compressors , Turbochargers , Cavities , Flow (Dynamics) , Pressure , Impellers , Design , Diesel engines , Numerical analysis , Stability

Investigation on Effect of Centrifugal Compressor Volute Cross-Section Shape on Performance and Flow Field

Mohammad Mojaddam, Ali Hajilouy Benisi, Mohammad Reza Movahhedi

GT 2012; 871-880https://doi.org/10.1115/GT2012-69454

Abstract

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Topics: Compressors , Flow (Dynamics) , Shapes , Pressure , Compressor impellers , Design , Geometry , Navier-Stokes equations , Performance characterization , Rotors

Instability Characteristic of a Single-Stage Centrifugal Compressor Exposed to Dry and Wet Gas

Trond G. Grüner, Lars E. Bakken

GT 2012; 881-890https://doi.org/10.1115/GT2012-69473

Abstract

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Topics: Compressors , Impellers , Performance characterization , Diffusers , Nozzles , Pipes , Pressure , Pressure sensors , Surges , Symmetry (Physics)

On the Effect of Volute Tongue Design on Radial Turbine Performance

Jan F. Suhrmann, Dieter Peitsch, Marc Gugau, Tom Heuer

GT 2012; 891-901https://doi.org/10.1115/GT2012-69525

Abstract

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Topics: Design , Turbines , Flow (Dynamics) , Wheels , Rotors , Aircraft , Computational fluid dynamics , Energy generation , Gas turbines , Geometry

Multidisciplinary Multipoint Optimization of a Transonic Turbocharger Compressor

R. A. Van den Braembussche, Z. Alsalihi, T. Verstraete, A. Matsuo, S. Ibaraki, K. Sugimoto, I. Tomita

GT 2012; 903-913https://doi.org/10.1115/GT2012-69645

Abstract

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Topics: Compressors , Optimization , Turbochargers , Impellers , Blades , Flow (Dynamics) , Geometry , Finite element analysis , Stress , Artificial neural networks

An Evaluation of 1D Design Methods for the Off-Design Performance Prediction of Automotive Turbocharger Compressors

Peter Harley, Stephen Spence, Dietmar Filsinger, Michael Dietrich, Juliana Early

GT 2012; 915-925https://doi.org/10.1115/GT2012-69743

Abstract

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Topics: Compressors , Design , Design methodology , Turbochargers , Heat transfer , Modeling , Pressure

An Experimental Assessment of the Effects of Stator Vane Tip Clearance Location and Back Swept Blading on an Automotive Variable Geometry Turbocharger

Jason Walkingshaw, Stephen Spence, Jan Ehrhard, David Thornhill

GT 2012; 927-937https://doi.org/10.1115/GT2012-69776

Abstract

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Topics: Clearances (Engineering) , Geometry , Stators , Turbochargers , Design , Rotors , Turbines , Flow (Dynamics) , Blades , Computational fluid dynamics

Performance Investigation of a Turbocharger Compressor

A. L. de Wet, T. W. von Backström, S. J. van der Spuy

GT 2012; 939-953https://doi.org/10.1115/GT2012-69795

Abstract

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Topics: Compressors , Turbochargers , Engineering prototypes , Diffusers , Impellers , Pressure , Three-dimensional modeling , Computational fluid dynamics , Diesel , Locomotives

Axial Flow Turbine Aerodynamics

Aerodynamic Investigations of Root Sections of Long Rotor Blades Applied at the Last Stages of Steam Turbines

David Šimurda, Martin Luxa, Pavel Šafařík, Jaroslav Synáč, Miroslav Šťastný

GT 2012; 955-964https://doi.org/10.1115/GT2012-68043

Abstract

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Topics: Blades , Rotors , Steam turbines , Design , Flow (Dynamics) , Aerodynamics , Flow turning , Kinetic energy , Mach number , Transonic flow

Numerical Investigation of the Effect of Jet-Flaps in a Transonic Turbine Cascade With Subsonic Operating Conditions

Ping-Ping Chen, Wei-Yang Qiao, Pu-Wei Wang

GT 2012; 965-975https://doi.org/10.1115/GT2012-68062

Abstract

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Topics: Cascades (Fluid dynamics) , Flow (Dynamics) , High pressure (Physics) , Turbines

A Spectral Study of a Moderately Loaded LPT Airfoil: Part 2—Effects of Turbulence Intensity and Reynolds Number on Frequencies Affecting By-Pass Transition

J. R. S. Graveline, S. A. Sjolander

GT 2012; 977-987https://doi.org/10.1115/GT2012-68071

Abstract

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Topics: Airfoils , Reynolds number , Turbulence , Air flow , Wire , Cascades (Fluid dynamics) , Chords (Trusses) , Inflow , Pressure , Probes

Measurements of Hub Flow Interaction on Film Cooled Nozzle Guide Vane in Transonic Annular Cascade

Lamyaa A. El-Gabry, Ranjan Saha, Jens Fridh, Torsten Fransson

GT 2012; 989-998https://doi.org/10.1115/GT2012-68088

Abstract

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Topics: Aerodynamics , Cascades (Fluid dynamics) , Cooling , Film cooling , Flow (Dynamics) , Nozzle guide vanes

A Spectral Study of a Moderately Loaded LPT Airfoil: Part 1—Identifying Frequencies Affecting By-Pass Transition

J. R. S. Graveline, S. A. Sjolander

GT 2012; 999-1009https://doi.org/10.1115/GT2012-68100

Abstract

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Topics: Airfoils , Air flow , Turbulence , Wire , Boundary layers , Emission spectroscopy , Kinetic energy , Pressure , Probes , Spectroscopy

On the Flow Evolution Through a LP Turbine With Wide-Chord Vanes in an S-Shaped Channel

Rosario Spataro, Cornelia Santner, Davide Lengani, Emil Göttlich

GT 2012; 1011-1020https://doi.org/10.1115/GT2012-68178

Abstract

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Topics: Chords (Trusses) , Flow (Dynamics) , Turbines , Rotors , Pressure , Ducts , High pressure (Physics) , Computational fluid dynamics , Flow visualization , Jet engines

Experimental Analysis of the Interaction Between Rim Seal and Main Annulus Flow in a Low Pressure Two Stage Axial Turbine

Sebastian Schrewe, Holger Werschnik, Heinz-Peter Schiffer

GT 2012; 1021-1031https://doi.org/10.1115/GT2012-68192

Abstract

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Topics: Annulus , Experimental analysis , Flow (Dynamics) , Pressure , Turbines , Stators , Fluctuations (Physics) , Probes , Temperature , Temperature measurement

Numerically Optimizing an Annular Diffuser Using a Genetic Algorithm With Three Objectives

David J. Cerantola, A. M. Birk

GT 2012; 1033-1042https://doi.org/10.1115/GT2012-68205

Abstract

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Topics: Diffusers , Genetic algorithms , Pressure , Exterior walls , Annulus , Computational fluid dynamics , Computer software , Exhaust systems , Flow (Dynamics) , Shapes

Numerical Study of Reynolds Number Effects of Cavity Volumes and Seal Gaps on LP Turbine Performance

Georg A. Reichstein, Martin G. Rose, Stephan Staudacher, Karl Engel

GT 2012; 1043-1051https://doi.org/10.1115/GT2012-68261

Abstract

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Topics: Cavities , Reynolds number , Turbines , Aircraft engines , Aircraft propulsion , Computational fluid dynamics , Computer simulation , Flow (Dynamics) , Probes , Simulation

Blade Loading Effects on Axial Turbine Tip Leakage Vortex Dynamics and Loss

A. C. Huang, E. M. Greitzer, C. S. Tan, E. F. Clemens, S. G. Gegg, E. R. Turner

GT 2012; 1053-1067https://doi.org/10.1115/GT2012-68302

Abstract

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Topics: Blades , Dynamics (Mechanics) , Leakage , Turbines , Vortices , Clearances (Engineering) , Pressure , Flow (Dynamics) , Turbine blades , Computation

Boundary Layer Control in Turbine Exhaust Diffusers Using Casing Injection and Design Modifications

Mohan Babu, Ram Krishan Shukla, Arpit Maru, A. M. Pradeep, Bhaskar Roy

GT 2012; 1069-1079https://doi.org/10.1115/GT2012-68387

Abstract

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Topics: Boundary layers , Design , Diffusers , Exhaust systems , Turbines , Pressure , Computational fluid dynamics , Flow (Dynamics) , Diffusion (Physics) , Flow control

Measurement of Aerodynamic Losses for Turbine Airfoil Cascades With Varying Pitch, Operating Under Transonic Conditions

Santosh Abraham, Kapil Panchal, Srinath V. Ekkad, Wing Ng, Andrew S. Lohaus, Anthony Malandra

GT 2012; 1081-1088https://doi.org/10.1115/GT2012-68424

Abstract

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Topics: Airfoils , Turbines , Mach number , Cascades (Fluid dynamics) , Design , Engines , Pressure , Computer simulation , Flow (Dynamics) , Pressure measurement

Effect of Endwall Contouring on a Transonic Turbine Blade Passage: Part 1—Aerodynamic Performance

Santosh Abraham, Kapil Panchal, Srinath V. Ekkad, Wing Ng, Andrew S. Lohaus, Anthony Malandra

GT 2012; 1089-1098https://doi.org/10.1115/GT2012-68425

Abstract

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Topics: Airfoils , Cascades (Fluid dynamics) , Computational fluid dynamics , Engines , Flow (Dynamics) , Heat transfer , Mach number , Pressure , Pressure measurement , Turbine blades

Endwall Profiling With Tip Clearance Flows

Michael Hilfer, Grant Ingram, Simon Hogg

GT 2012; 1099-1108https://doi.org/10.1115/GT2012-68488

Abstract

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Topics: Clearances (Engineering) , Flow (Dynamics) , Design , Cascades (Fluid dynamics) , Computational fluid dynamics

Experimental Studies of Leading Edge Contouring Influence on Secondary Losses in Transonic Turbines

Ranjan Saha, Jens Fridh, Torsten Fransson, Boris I. Mamaev, Mats Annerfeldt

GT 2012; 1109-1119https://doi.org/10.1115/GT2012-68497

Abstract

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Topics: Cascades (Fluid dynamics) , Design , Flow (Dynamics) , Gas turbines , Guide vanes , Mach number , Probes , Radial flow , Turbines , Vortices

Reynolds Number Effects in a Low Pressure Turbine

Harjit S. Hura, John Joseph, Dave E. Halstead

GT 2012; 1121-1130https://doi.org/10.1115/GT2012-68501

Abstract

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Topics: Pressure , Reynolds number , Turbines , Flow (Dynamics) , Blades , Boundary layers , Computational fluid dynamics , Boundary-value problems , Chords (Trusses) , Engines

The Effect of Mach Number on the Loss Generation of LP Turbines

Raúl Vázquez, Diego Torre

GT 2012; 1131-1142https://doi.org/10.1115/GT2012-68555

Abstract

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Topics: Mach number , Turbines , Stators , Pressure , Airfoils , Design , Blades , Compressibility , Reynolds number , Rotors

The Effect of Airfoil Thickness on the Efficiency of LP Turbines

Diego Torre, Raúl Vázquez, Leyre Armanañzas, Fernando Partida, Guillermo García-Valdecasas

GT 2012; 1143-1152https://doi.org/10.1115/GT2012-68556

Abstract

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Topics: Airfoils , Turbines , Chords (Trusses) , Flow (Dynamics) , Pressure , Stators , Blades , Bubbles , Design , Reynolds number

Optimization of Non-Axisymmetric End Wall Contours for the Rotor of a Low Speed, 1 1/2 Stage Research Turbine With Unshrouded Blades

Jonathan Bergh, Glen Snedden, Christiaan Meyer

GT 2012; 1153-1165https://doi.org/10.1115/GT2012-68569

Abstract

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Topics: Blades , Optimization , Rotors , Turbines , Design , Cascades (Fluid dynamics) , Flow (Dynamics) , Inspection , Manufacturing

Investigation of the Laminar Separation-Induced Transition With the $γ - {\tilde{Re}}_{θ t}$ Transition Model on Low-Pressure Turbine Rotor Blades at Steady Conditions

Jayson Babajee, Tony Arts

GT 2012; 1167-1178https://doi.org/10.1115/GT2012-68687

Abstract

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Topics: Blades , Pressure , Rotors , Separation (Technology) , Turbines , Reynolds number , Turbulence , Flow (Dynamics) , Stress , Bubbles

Aerodynamic Design of High Endwall Angle Turbine Stages: Part 1—Methodology Development

A. W. Cranstone, G. Pullan, E. M. Curtis, S. Bather

GT 2012; 1179-1189https://doi.org/10.1115/GT2012-68705

Abstract

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Topics: Design , Turbines , Pressure , Blades , Annulus , Design methodology , Ducts

Aerodynamic Design of High Endwall Angle Turbine Stages: Part 2—Experimental Verification

A. W. Cranstone, G. Pullan, E. M. Curtis, S. Bather

GT 2012; 1191-1203https://doi.org/10.1115/GT2012-68706

Abstract

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Topics: Design , Turbines , Computational fluid dynamics , Annulus , Modeling , Suction , Turbulence

Endwall Loss and Mixing Analysis of a High Lift Low Pressure Turbine Cascade

M. Eric Lyall, Paul I. King, Rolf Sondergaard

GT 2012; 1205-1216https://doi.org/10.1115/GT2012-68709

Abstract

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Topics: Cascades (Fluid dynamics) , Pressure , Turbines , Flow (Dynamics) , Turbulence , Separation (Technology) , Shear (Mechanics) , Suction , Vortices , Boundary layers

Secondary Flow Loss Reduction Through Blowing for a High-Lift Front-Loaded Low Pressure Turbine Cascade

Stuart Benton, Jeffrey P. Bons, Rolf Sondergaard

GT 2012; 1217-1227https://doi.org/10.1115/GT2012-68812

Abstract

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Topics: Cascades (Fluid dynamics) , Flow (Dynamics) , Pressure , Turbines , Blades , Reynolds number , Jets , Flow control , Generators , Momentum

Hub Extension in an Axial Gas Turbine Diffuser

A. Hirschmann, S. Volkmer, M. Casey, M. Montgomery

GT 2012; 1229-1238https://doi.org/10.1115/GT2012-68832

Abstract

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Topics: Diffusers , Gas turbines , Pressure , Flow (Dynamics) , Mach number , Computational fluid dynamics , Turbines , Bearings , Design , Incompressible fluids

Large-Eddy Simulation of Flow in a Low-Pressure Turbine Cascade

Gorazd Medic, Om Sharma

GT 2012; 1239-1248https://doi.org/10.1115/GT2012-68878

Abstract

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Topics: Cascades (Fluid dynamics) , Flow (Dynamics) , Large eddy simulation , Pressure , Turbines , Reynolds number , Separation (Technology) , Airfoils , Turbulence , Resolution (Optics)

Surface Thin Film Gauge Measurements in a Two-Stage Low Pressure Turbine at Low Reynolds Number

Matthias Kürner, Martin G. Rose, Stephan Staudacher, Jochen Gier, Andreas Fiala, Bastian Patzer

GT 2012; 1249-1261https://doi.org/10.1115/GT2012-68906

Abstract

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Topics: Gages , Pressure , Reynolds number , Thin films , Turbines , Boundary layers , Aircraft engines , Aircraft propulsion , Blades , Probes

Effects of Winglet Geometry on the Aerodynamic Performance of Tip Leakage FLow in a Turbine Cascade

Chao Zhou, Howard Hodson, Ian Tibbott, Mark Stokes

GT 2012; 1263-1274https://doi.org/10.1115/GT2012-68942

Abstract

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Topics: Cascades (Fluid dynamics) , Geometry , Leakage flows , Turbines , Pressure , Cavities , Flow (Dynamics) , Discharge coefficient , Leakage , Numerical analysis

Aerodynamic Effects of an Unshrouded Low Pressure Turbine on a Low Aspect Ratio Exit Guide Vane

Thorsten Selic, Davide Lengani, Andreas Marn, Franz Heitmeir

GT 2012; 1275-1286https://doi.org/10.1115/GT2012-68981

Abstract

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Topics: Guide vanes , Pressure , Turbines , Flow (Dynamics) , Aircraft engines , Leakage flows , Clearances (Engineering) , Computational fluid dynamics , Flow visualization , Leakage

Analysis of Radial Migration of Hot-Streak in Swirling Flow Through HP Turbine Stage

B. Khanal, L. He, J. Northall, P. Adami

GT 2012; 1287-1299https://doi.org/10.1115/GT2012-68983

Abstract

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Topics: Swirling flow , Turbines , Combustion chambers , Blades , Heat transfer , Nozzle guide vanes , Computational fluid dynamics , Engineering simulation , Flow (Dynamics) , Fluids

A Comparison of Three Low Pressure Turbine Designs

Christian T. Wakelam, Reinhard Niehuis, Martin Hoeger

GT 2012; 1301-1312https://doi.org/10.1115/GT2012-69028

Abstract

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Topics: Pressure , Turbines , Suction , Diffusion (Physics) , Reynolds number , Wakes , Boundary layers , Chords (Trusses) , Mach number , Generators

Boundary Layer Control on a Low Pressure Turbine Blade by Means of Pulsed Blowing

Marion Mack, Reinhard Niehuis, Andreas Fiala, Yavuz Guendogdu

GT 2012; 1313-1322https://doi.org/10.1115/GT2012-69029

Abstract

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Topics: Boundary layers , Pressure , Turbine blades , Blades , Inflow , Reynolds number , Wakes , Cascades (Fluid dynamics) , Mach number

Investigation of Streamwise and Transverse Instabilities on Swept Cylinders and Implications for Turbine Blading

J. P. Gostelow, A. Rona, M. De Saint Jean, S. J. Garrett, W. A. McMullan

GT 2012; 1323-1333https://doi.org/10.1115/GT2012-69055

Abstract

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Topics: Cylinders , Turbines , Circular cylinders , Boundary layers , Blades , Cascades (Fluid dynamics) , Flow visualization , Suction , Turbine blades , Vortices

Effects of Periodic Wakes and Freestream Turbulence on Coherent Structures in Low-Pressure Turbine Boundary Layer

Weihao Zhang, Zhengping Zou, Kun Zhou, Huoxing Liu, Jian Ye

GT 2012; 1335-1346https://doi.org/10.1115/GT2012-69061

Abstract

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Topics: Boundary layers , Pressure , Turbines , Turbulence , Wakes , Separation (Technology) , Bubbles , Cascades (Fluid dynamics) , Chords (Trusses) , Large eddy simulation

Numerical and Analytical Study of the Effect of Film Cooling on HP NGV Capacity

Chris Hambidge, Tom Povey

GT 2012; 1347-1358https://doi.org/10.1115/GT2012-69066

Abstract

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Topics: Film cooling , Nozzle guide vanes , Computational fluid dynamics , Turbines , Airfoils , Cooling , Engine design , Engineering simulation , Flow (Dynamics) , Pressure

Unsteady Interaction Between Annulus and Turbine Rim Seal Flows

Martin Chilla, Howard Hodson, David Newman

GT 2012; 1359-1370https://doi.org/10.1115/GT2012-69089

Abstract

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Topics: Annulus , Flow (Dynamics) , Turbines , Sealing (Process) , Rotors , Blades , Aerodynamics , Computer simulation , Design , Disks

Turbulence Levels are High at the Combustor-Turbine Interface

Chong M. Cha, Peter T. Ireland, Paul A. Denman, Vivek Savarianandam

GT 2012; 1371-1390https://doi.org/10.1115/GT2012-69130

Abstract

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Topics: Combustion chambers , Turbines , Turbulence , Engines , Computational fluid dynamics , Flow (Dynamics) , Hardware , Nozzle guide vanes , Reynolds-averaged Navier–Stokes equations , Combustion

Performance Prediction of Axial Flow Two-Stage Turbine Based on Different Losses Models

H. Javaniyan Jouybari, M. Eftari, M. Shahhosseini, M. Rad

GT 2012; 1391-1399https://doi.org/10.1115/GT2012-69149

Abstract

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Topics: Axial flow , Turbines , Modeling , Algorithms , Design , Flow (Dynamics) , Simulation , Testing , Aerodynamics , Entropy

Interactions Between the Combustor Swirl and the High Pressure Stator of a Turbine

Lucas Giller, Heinz-Peter Schiffer

GT 2012; 1401-1415https://doi.org/10.1115/GT2012-69157

Abstract

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Topics: Combustion chambers , High pressure (Physics) , Stators , Turbines , Cascades (Fluid dynamics) , Film cooling , Flow (Dynamics) , Inflow , Nozzles , Swirling flow

A Numerical Investigation Into the Sources of Endwall Loss in Axial Flow Turbines

John Denton, Graham Pullan

GT 2012; 1417-1430https://doi.org/10.1115/GT2012-69173

Abstract

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Topics: Axial flow , Turbines , Boundary layers , Flow (Dynamics) , Blades , Cascades (Fluid dynamics) , Rotors , Stators , Computational fluid dynamics , Computational methods

Concurrent Effects of Hot Streak and Gas Species Concentration on Aerothermal Characteristics in a Turbine Stage

Zhong-Nan Wang, Xin Yuan

GT 2012; 1431-1441https://doi.org/10.1115/GT2012-69283

Abstract

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Topics: Turbines , Hydrogen , Temperature , Blades , Cooling , Pressure , Steam , Aerodynamics , Carbon dioxide , Combustion chambers

Experimental Investigation and Computational Evaluation of Contoured Endwall and Leading Edge Fillet Configurations in a Turbine NGV

Özhan H. Turgut, Cengiz Camcı

GT 2012; 1443-1458https://doi.org/10.1115/GT2012-69304

Abstract

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Topics: Nozzle guide vanes , Turbines , Flow (Dynamics) , Rotors , Simulation , Probes , Axial flow , Design , Pressure , Pressure measurement

Computational Validation of the Flow Through a Turbine Stage and the Effects of Rim Seal Cavity Leakage on Secondary Flows

Özhan H. Turgut, Cengiz Camcı

GT 2012; 1459-1472https://doi.org/10.1115/GT2012-69306

Abstract

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Topics: Cavities , Flow (Dynamics) , Leakage , Turbines , Nozzle guide vanes , Rotors , Axial flow , Probes , Simulation , Stators

Experimental Investigation of the Effects of Waveform Tip Injection in a Low Pressure Turbine Cascade

Bayram Mercan, Eda Doğan, Yashar Ostovan, Oğuz Uzol

GT 2012; 1473-1485https://doi.org/10.1115/GT2012-69316

Abstract

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Topics: Cascades (Fluid dynamics) , Pressure , Turbines , Vortices , Flow (Dynamics) , Leakage , Blades , Turbulence , Computers , Jets

On the Assessment of Turbine Efficiency From Experimental Data for Low Pressure Turbines at Low Reynolds Numbers

C. Schneider, M. G. Rose, S. Staudacher, A. Heisler, F. Lippl, I. Raab

GT 2012; 1487-1496https://doi.org/10.1115/GT2012-69435

Abstract

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Topics: Pressure , Reynolds number , Turbines , Design , Measurement systems , Resolution (Optics) , Computational fluid dynamics , Flow (Dynamics) , Machinery , Probes

A Path Towards the Aerodynamic Robust Design of Low Pressure Turbines

Francesco Bertini, Martina Credi, Michele Marconcini, Matteo Giovannini

GT 2012; 1497-1507https://doi.org/10.1115/GT2012-69456

Abstract

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Topics: Design , Pressure , Turbines , Engines , Aircraft engines , Boundary-value problems , Computer simulation , Cycles , Fuel consumption , Fuels

Experimental Investigation of Purge Flow Effects on a High Pressure Turbine Stage

K. Regina, A. I. Kalfas, R. S. Abhari

GT 2012; 1509-1519https://doi.org/10.1115/GT2012-69466

Abstract

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Topics: Flow (Dynamics) , High pressure (Physics) , Turbines , Rotors , Displacement , Design , Probes , Vortices , Aerodynamic flow , Cavities

URANS Analysis of Wake-Induced Effects in High-Lift, Low Reynolds Number Cascade Flows

Roberto Pacciani, Michele Marconcini, Andrea Arnone, Francesco Bertini

GT 2012; 1521-1530https://doi.org/10.1115/GT2012-69479

Abstract

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Topics: Cascades (Fluid dynamics) , Flow (Dynamics) , Reynolds number , Wakes , Turbulence , Turbines , Turbomachinery , Aircraft engines , Blades , Boundary layers

The Effects of Tip Clearance on Performance of a Heavy Duty Multi Stages Axial Turbine

Mohammad Reza Shirzadi, Hossein Saeidi

GT 2012; 1531-1541https://doi.org/10.1115/GT2012-69553

Abstract

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Topics: Clearances (Engineering) , Turbines , Flow (Dynamics) , Leakage , Pressure drop , Rotors , Compressible flow , Computational fluid dynamics , Cooling , Design

Experimental and Numerical Investigation of Tip Leakage Flow in a 1 1/2 Stage Turbine Rig Comparing Flat and Cavity-Squealer Tip Geometries

Martin Kegalj, Gregor Schmid, Fabian Wartzek, Heinz-Peter Schiffer, Lars Willer

GT 2012; 1543-1557https://doi.org/10.1115/GT2012-69568

Abstract

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Topics: Cavities , Leakage flows , Turbines , Flow (Dynamics) , Leakage , High pressure (Physics) , Probes , Blades , Computer simulation , Particulate matter

The Effect of Acoustic Excitation on Boundary Layer Separation of a Highly Loaded LPT Blade

Chiara Bernardini, Stuart Benton, Jeffrey P. Bons

GT 2012; 1559-1569https://doi.org/10.1115/GT2012-69618

Abstract

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Topics: Acoustics , Blades , Boundary layers , Excitation , Separation (Technology) , Cascades (Fluid dynamics) , Shear (Mechanics) , Turbulence , Bubbles , Delays

Axial Loss Development in Low Pressure Turbine Cascades

Bastian Muth, Reinhard Niehuis

GT 2012; 1571-1581https://doi.org/10.1115/GT2012-69726

Abstract

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Topics: Pressure , Turbines , Cascades (Fluid dynamics) , Flow (Dynamics) , Inflow , Reynolds number , Wind tunnels , Computational fluid dynamics , Computer simulation , Density

Effects of Solid Particle Ingestion Through an HP Turbine

Adel Ghenaiet

GT 2012; 1583-1595https://doi.org/10.1115/GT2012-69875

Abstract

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Topics: Particulate matter , Turbines , Erosion , Blades , Corners (Structural elements) , Nozzle guide vanes , Pressure , Rotors , Suction , Engineering simulation

Influence of a Novel Three-Dimensional Leading Edge Geometry on the Aerodynamic Performance of Transonic Cascade Vanes

D. Bouchard, A. Asghar, J. Hardes, R. Edwards, W. D. E. Allan, M. LaViolette

GT 2012; 1597-1608https://doi.org/10.1115/GT2012-69926

Abstract

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Topics: Cascades (Fluid dynamics) , Geometry , Design , Pressure , Computational fluid dynamics , Engineering systems and industry applications , Flow visualization , Pressure measurement , Shock (Mechanics) , Turbines

Flow Control in an Aggressive Inter-Turbine Duct Using Low Profile Vortex Generators

Yanfeng Zhang, Shuzhen Hu, Xue Feng Zhang, Michael Benner, Edward Vlasic

GT 2012; 1609-1619https://doi.org/10.1115/GT2012-69951

Abstract

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Topics: Ducts , Flow control , Generators , Turbines , Vortices , Boundary layers , Separation (Technology) , Flow (Dynamics) , Delays , Physics

Time-Resolved Numerical Investigation of the Effects of Blade-Row Spacing on the Turbine Efficiency

S. Behre, M. Restemeier, P. Jeschke, Y. Guendogdu, K. Engel

GT 2012; 1621-1631https://doi.org/10.1115/GT2012-69972

Abstract

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Topics: Blades , Turbines , Suction , Axial flow , Boundary layers , Density , Engineering simulation , Geometry , Reynolds-averaged Navier–Stokes equations , Rotors

Comparison Between Unstructured and Structured Meshes With Different Turbulence Models for a High Pressure Turbine Application

Jesuino Takachi Tomita, Lucilene Moraes da Silva, Diego Thomas da Silva

GT 2012; 1633-1645https://doi.org/10.1115/GT2012-69990

Abstract

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Topics: Computational fluid dynamics , High pressure (Physics) , Turbines , Turbulence

On the Physics of Vortex Formation at the Tip of a Turbine Blade

Mohamed El-Ghandour, Mohammed M. E. Shatat, Yoshiaki Nakamura

GT 2012; 1647-1654https://doi.org/10.1115/GT2012-70128

Abstract

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Topics: Physics , Turbine blades , Vortices , Blades , Rotors , Turbines , Flow (Dynamics) , Cavities , Delay differential equations , Eddies (Fluid dynamics)

Ducts and Component Interactions

Systematic Optimisation of a Turbofan Bypass Duct System

C. Clemen, P. Albrecht, S. Herzog

GT 2012; 1655-1666https://doi.org/10.1115/GT2012-68276

Abstract

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Topics: Ducts , Optimization , Turbofans , Engines , Design , Pressure , Flow (Dynamics) , Guide vanes , Bifurcation , Shapes

The Impact of Compressor Exit Conditions on Fuel Injector Flows

C. L. Ford, J. F. Carrotte, A. D. Walker

GT 2012; 1667-1677https://doi.org/10.1115/GT2012-68918

Abstract

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Topics: Compressors , Flow (Dynamics) , Fuel injectors , Ejectors , Emissions , Air flow , Aircraft engines , Atmospheric pressure , Combustion systems , Computational fluid dynamics

Multiobjective Optimization for Duct and Strut Design of an Annular Exhaust Diffuser

Philipp Schaefer, Willy H. Hofmann, Peter-Anton Gieß

GT 2012; 1679-1689https://doi.org/10.1115/GT2012-69211

Abstract

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Topics: Design , Diffusers , Ducts , Exhaust systems , Pareto optimization , Struts (Engineering) , Optimization , Gas turbines , Geometry , Pressure

Effects of Non-Uniform Combustor Exit Flow on Turbine Aerodynamics

Stavros Pyliouras, Heinz-Peter Schiffer, Erik Janke, Lars Willer

GT 2012; 1691-1701https://doi.org/10.1115/GT2012-69327

Abstract

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Topics: Aerodynamics , Combustion chambers , Flow (Dynamics) , Turbines , Boundary-value problems , Combustion , Engines , Geometry , Computer simulation , Emission spectroscopy

Numerical and Experimental Analysis of the Airflow Inside an A250 Diffuser Tube

G. G. W. Lee, W. D. E. Allan, K. Goni Boulama

GT 2012; 1703-1712https://doi.org/10.1115/GT2012-69708

Abstract

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Topics: Air flow , Diffusers , Experimental analysis , Flow (Dynamics) , Friction , Pressure , Combustion chambers , Compressors , Exterior walls , Gas turbines

Hub Injection Flow Control in a Turbine Exhaust Diffuser

Silke Volkmer, Benjamin Kuschel, Andreas Hirschmann, Markus Schatz, Michael Casey, Matthew Montgomery

GT 2012; 1713-1723https://doi.org/10.1115/GT2012-69713

Abstract

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Topics: Diffusers , Exhaust systems , Flow control , Turbines , Flow (Dynamics) , Wakes , Separation (Technology) , Computational fluid dynamics , Combined cycle gas turbines , Computation

Noise and Innovative Noise Reduction (With Aircraft Engine)

Effects of Boundary Layer Ingestion on the Aero-Acoustics of Transonic Fan Rotors

J. J. Defoe, Z. S. Spakovszky

GT 2012; 1725-1734https://doi.org/10.1115/GT2012-68503

Abstract

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Topics: Acoustics , Boundary layers , Rotors , Vortices , Noise (Sound) , Shock (Mechanics) , Flow (Dynamics) , Blades , Rotation , Swirling flow

Tip Clearance Effects on Unsteady Behavior of the Tip Leakage Vortex and Stator/Rotor Interaction Tonal Noise

Lei Zhao, Wei-Yang Qiao, Zhong-Qiang Mu, Ping-Ping Chen

GT 2012; 1735-1744https://doi.org/10.1115/GT2012-68549

Abstract

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Topics: Clearances (Engineering) , Leakage , Noise (Sound) , Rotors , Stators , Vortices , Wakes , Blades , Computer simulation , Flow (Dynamics)

Analytical Analysis of Indirect Combustion Noise in Subcritical Nozzles

Alexis Giauque, Maxime Huet, Franck Clero

GT 2012; 1745-1755https://doi.org/10.1115/GT2012-69008

Abstract

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Topics: Combustion , Noise (Sound) , Nozzles , Acoustic emissions , Flow (Dynamics) , Transfer functions , Acoustics , Shapes , Temperature , Temperature profiles

Near-Field Noise Reduction of a Ducted Helicopter Tail Rotor due to a Modified Stator Vane Geometry

Marc Kainz, Hans-Peter Kau, Frédéric Le Chuiton

GT 2012; 1757-1768https://doi.org/10.1115/GT2012-69118

Abstract

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Topics: Geometry , Noise control , Rotors , Stators , Blades , Noise (Sound) , Acoustics , Aerodynamic noise , Aerodynamics , Boundary-value problems

Aerodynamic and Aeroacoustic Performance of Cross Flow Fan With Inlet Guide Vane

Jie Tian, Hua Ouyang, Kangjie Sun, Xiaocheng Zhu, Zhiming Zheng, Zhaohui Du

GT 2012; 1769-1778https://doi.org/10.1115/GT2012-69245

Abstract

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Topics: Cross-flow , Inlet guide vanes , Flow (Dynamics) , Energy consumption , Noise (Sound) , Airfoils , Blades , Design , Engineering prototypes , Internal flow

Advanced Numerical Methods for the Prediction of Tonal Noise in Turbomachinery: Part II—Time-Linearized Methods

Christian Frey, Graham Ashcroft, Hans-Peter Kersken, Christian Weckmüller

GT 2012; 1779-1789https://doi.org/10.1115/GT2012-69418

Abstract

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Topics: Noise (Sound) , Numerical analysis , Turbomachinery , Boundary-value problems , Linear systems , Acoustics , Aerodynamic noise , Computational fluid dynamics , Computer simulation , Flux (Metallurgy)

Advanced Numerical Methods for the Prediction of Tonal Noise in Turbomachinery: Part I—Implicit Runge Kutta Schemes

Graham Ashcroft, Christian Frey, Kathrin Heitkamp, Christian Weckmüller

GT 2012; 1791-1802https://doi.org/10.1115/GT2012-69447

Abstract

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Topics: Noise (Sound) , Numerical analysis , Turbomachinery , Computational fluid dynamics , Aerodynamic noise , Computer simulation , Navier-Stokes equations , Stability

Sound Generation and Propagation in a Centrifugal Pump With the Finite Volume EIF-Approach

Thilo Michels, Marian Markiewicz, Otto von Estorff

GT 2012; 1803-1811https://doi.org/10.1115/GT2012-69714

Abstract

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Topics: Centrifugal pumps , Acoustics , Flow (Dynamics) , Aerodynamic noise , Engineering simulation , Simulation , Computation , Computational fluid dynamics , Electromagnetic scattering , Fluctuations (Physics)

The Influence of the TCS on the Circumferential Mode Distribution in the Inlet of a Fanrig (UFFA)

Wolfram Köhler

GT 2012; 1813-1822https://doi.org/10.1115/GT2012-69762

Abstract

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Topics: Acoustics , Aerospace industry , Aircraft engines , Algorithms , Flight , Inflow , Noise (Sound) , Rotors , Spin (Aerodynamics) , Spinning (Textile)

Simulation of Radial Compressor Aeroacoustics Using CFD

Fred Mendonça, Onur Baris, Geoff Capon

GT 2012; 1823-1832https://doi.org/10.1115/GT2012-70028

Abstract

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Topics: Aerodynamic noise , Compressors , Computational fluid dynamics , Simulation , Flow (Dynamics) , Modeling , Turbulence , Blades , Noise (Sound) , Boundary-value problems

Performance Improvement of Multi-Blade Centrifugal Fan by Using Optimal Bionic Blade

Xiaomin Liu, Xing Wang, Hu Tang, Guang Xi

GT 2012; 1833-1842https://doi.org/10.1115/GT2012-70061

Abstract

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Topics: Bionics , Blades , Flow (Dynamics) , Noise (Sound) , Optimization , Pressure , Design , Navier-Stokes equations , Sound pressure

Simulation and Validation of Centrifugal Impeller Shock Wave and Acoustic Power Prediction

Robert H. Schlinker, Arthur Blanc, Elizabeth Lurie, Jongwook Joo, Aaron Reimann, Daniel Shannon, John Simonich

GT 2012; 1843-1851https://doi.org/10.1115/GT2012-70076

Abstract

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Topics: Acoustics , Impellers , Shock waves , Simulation , Shock (Mechanics) , Noise (Sound) , Rotors , Blades , Compressors , Pressure

Design Methods and CFD Modeling for Turbomachinery

Speed Line Computation of a Transonic Compressor Stage With Unsteady CFD Methods

Thomas Biesinger, Christian Cornelius, Dirk Nürnberger, Christoph Rube

GT 2012; 1853-1862https://doi.org/10.1115/GT2012-68029

Abstract

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Topics: Compressors , Computation , Computational fluid dynamics , Blades , Flow (Dynamics) , Transients (Dynamics) , Modeling , Pressure , Shock (Mechanics) , Simulation results

Performance Uncertainty Quantification for Centrifugal Compressors: Part 1—Stage Performance Variation

Andrea Panizza, Giuseppe Iurisci, Giuseppe Sassanelli, Sankaran Sivasubramaniyan

GT 2012; 1863-1872https://doi.org/10.1115/GT2012-68036

Abstract

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Topics: Compressors , Uncertainty quantification , Flanges , Uncertainty , Design , Geometry , Impellers , Manufacturing , Monte Carlo methods , Risk

Three-Dimensional Design Optimization of Multistage Axial Flow Turbines Using a RSM Based Approach

Carlo Cravero, Paolo Macelloni, Giuseppe Briasco

GT 2012; 1873-1884https://doi.org/10.1115/GT2012-68040

Abstract

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Topics: Axial flow , Design , Optimization , Turbines , Artificial neural networks , Blades , Flow (Dynamics) , Genetic algorithms , Pareto optimization , Response surface methodology

Multi-Disciplinary Optimization of Mid-Span Shroud Ring Structure: A Multi-Parameter Geometry Study Case

Yuan-Ting Wu, Jerome Le Moine, Pei-feng Hsu, Christian K. Funk, C. Subramanian, Christian X. Campbell, Sam R. Miller, John J. Marra

GT 2012; 1885-1891https://doi.org/10.1115/GT2012-68068

Abstract

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Topics: Geometry , Optimization , Damping , Design , Drag (Fluid dynamics) , Engines , Turbine blades , Blades , Computational fluid dynamics , Computer software

Implementation and Assessment of an Advanced Plenum Boundary Condition for Turbine Design Calculations

Richard Jefferson-Loveday, Paul Tucker, John Northall

GT 2012; 1893-1901https://doi.org/10.1115/GT2012-68090

Abstract

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Topics: Boundary-value problems , Design , Turbines , Cavities , Flow (Dynamics) , Geometry , Annulus , Computational fluid dynamics , Engines , Pressure

Differential Equation Specification of Integral Turbulence Length Scales

Richard Jefferson-Loveday, Paul Tucker, V. Nagabhushana Rao, John Northall

GT 2012; 1903-1913https://doi.org/10.1115/GT2012-68091

Abstract

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Topics: Differential equations , Turbulence , Flow (Dynamics) , Reynolds-averaged Navier–Stokes equations , Cavities , Drag (Fluid dynamics) , Cylinders , Reynolds number , Boundary-value problems , Errors

Numerical Investigation of High-Pressure Turbine Environment Effects on the Prediction of Aerothermal Performances

Fabien Wlassow, Francis Leboeuf, Gilles Leroy, Nicolas Gourdain, Ghislaine Ngo Boum

GT 2012; 1915-1928https://doi.org/10.1115/GT2012-68143

Abstract

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Topics: High pressure (Physics) , Turbines , Blades , Temperature , Flow (Dynamics) , Cooling , Entropy , Fluids , Simulation , Coolants

Further Validation of the Non Linear Harmonic Method in a Subsonic Counter-Rotating Compressor

Lei Wang, Bo Liu, Xiaodong Yang, Zhiyuan Cao

GT 2012; 1929-1939https://doi.org/10.1115/GT2012-68227

Abstract

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Topics: Compressors , Rotors , Stress , Flow (Dynamics) , Simulation , Annulus , Boundary layers , Computational fluid dynamics , Modeling , Physics

Through Flow Flange-to-Flange Turbine and Diffuser Analysis

Andrei Granovskiy, Mikhail Kostege, Vladislav Krupa, Sergey Rudenko

GT 2012; 1941-1950https://doi.org/10.1115/GT2012-68284

Abstract

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Topics: Diffusers , Flanges , Flow (Dynamics) , Turbines , Stress , Gas turbines , Combined cycle power stations , Computational fluid dynamics , Design , Energy generation

The Influence of Metamodeling Techniques on the Multidisciplinary Design Optimization of a Radial Compressor Impeller

Christopher Chahine, Joerg R. Seume, Tom Verstraete

GT 2012; 1951-1964https://doi.org/10.1115/GT2012-68358

Abstract

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Topics: Compressor impellers , Design , Optimization , Computational fluid dynamics , Flow (Dynamics) , Optimization algorithms , Turbomachinery , Approximation , Engineering disciplines , Errors

Multidisciplinary Optimization of a Turbocharger Radial Turbine

Lasse Mueller, Zuheyr Alsalihi, Tom Verstraete

GT 2012; 1965-1976https://doi.org/10.1115/GT2012-68403

Abstract

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Topics: Optimization , Turbines , Turbochargers , Design , Artificial neural networks , Stress , Inertia (Mechanics) , Automotive industry , Blades , Computation

Characterization of Aerodynamic Performance of Boundary-Layer-Ingesting Inlet Under Crosswind

Meng-Sing Liou, Byung Joon Lee

GT 2012; 1977-1989https://doi.org/10.1115/GT2012-68509

Abstract

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Topics: Aircraft , Blades , Boundary layers , Design , Diffusers , Engines , Flow (Dynamics) , Flow control , Fuels , Generators

Multi-Stage Turbomachinery Blades Optimization Design Using Adjoint Method and Thin Shear-Layer N-S Equations

Lucheng Ji, Weiwei Li, Yong Tian, Weilin Yi, Jiang Chen

GT 2012; 1991-2000https://doi.org/10.1115/GT2012-68537

Abstract

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Topics: Blades , Design , Optimization , Shear (Mechanics) , Turbomachinery , Flow (Dynamics) , Compressors , Pressure , Shape design , Boundary-value problems

Multi-Objective Compressor Design Optimization Using Multi-Design Transfer Between Codes of Different Fidelity

Fiete Poehlmann, Dieter Bestle

GT 2012; 2001-2010https://doi.org/10.1115/GT2012-68577

Abstract

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Topics: Compressors , Design , Optimization

Boundary Conditions for Vortex CFD Simulations

Grant McLelland, Domenico di Cugno, David G. MacManus, Vassilios Pachidis

GT 2012; 2011-2022https://doi.org/10.1115/GT2012-68718

Abstract

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Topics: Boundary-value problems , Computational fluid dynamics , Engineering simulation , Simulation , Vortices , Wings

Generation of Gas Turbine Component Maps on Basis of Operational Data

M. Zwingenberg, B. Dobrzynski, S. Klumpp, K. Werner, F.-K. Benra

GT 2012; 2023-2037https://doi.org/10.1115/GT2012-68776

Abstract

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Topics: Gas turbines , Compressors , Turbines , Calibration , Stress , Data storage systems , Databases , Fuzzy logic , Kalman filters , Modeling

Design Procedure for a Turgo Type Turbine Using a Three-Dimensional Potential Flow

Jorge Luis Clarembaux Correa, Jesús De Andrade, Ricardo Noguera, Sergio Croquer, Freddy Jeanty, Miguel Asuaje

GT 2012; 2039-2052https://doi.org/10.1115/GT2012-68807

Abstract

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Topics: Design , Design methodology , Flow (Dynamics) , Turbines

On LES Methods Applied to Seal Geometries

James Tyacke, Richard Jefferson-Loveday, Paul Tucker

GT 2012; 2053-2065https://doi.org/10.1115/GT2012-68840

Abstract

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Topics: Design , Electromagnetic scattering , Errors , Flow (Dynamics) , Large eddy simulation , Physics , Reynolds-averaged Navier–Stokes equations , Stress , Turbulence

Steady State and Transient CFD Studies on Aerodynamic Performance Validation of a High Pressure Turbine

Sridhar Murari, Sathish Sunnam, Jong S. Liu

GT 2012; 2067-2077https://doi.org/10.1115/GT2012-68853

Abstract

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Topics: Computational fluid dynamics , High pressure (Physics) , Steady state , Transients (Dynamics) , Turbines , Flow (Dynamics) , Design , Simulation , Pressure , Reynolds-averaged Navier–Stokes equations

Applications of EARSM Turbulence Models to Internal Flows

O. Z. Mehdizadeh, L. Temmerman, B. Tartinville, Ch. Hirsch

GT 2012; 2079-2086https://doi.org/10.1115/GT2012-68886

Abstract

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Topics: Internal flow , Turbulence , Flow (Dynamics) , Computational fluid dynamics , Diffusers , Stress , Anisotropy , Corners (Structural elements) , Eddies (Fluid dynamics) , Viscosity

Quantification of the Numerical Solution Sensitivity to Unknown Parameters: Application to Compressor and Turbine Flows

Nicolas Gourdain, Karl Dewandel

GT 2012; 2087-2099https://doi.org/10.1115/GT2012-68890

Abstract

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Topics: Compressors , Flow (Dynamics) , Turbines , Rotors , Stability , Clearances (Engineering) , Heat transfer , Turbulence , Bifurcation , Boundary layers

DNS of a Low Pressure Turbine Blade Computed With the Discontinuous Galerkin Method

Corentin Carton de Wiart, Koen Hillewaert, Philippe Geuzaine

GT 2012; 2101-2111https://doi.org/10.1115/GT2012-68900

Abstract

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Topics: Cascades (Fluid dynamics) , Computation , Computer simulation , Flow (Dynamics) , Galerkin method , Large eddy simulation , Optical quality control , Pressure , Resolution (Optics) , Turbine blades

Modeling of the Hub Cavity Leakage Flows in Axial Compressors

Hasham H. Chougule, Anand Dhamarla, Shraman Goswami, Mahmoud L. Mansour

GT 2012; 2113-2121https://doi.org/10.1115/GT2012-68928

Abstract

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Topics: Cavities , Compressors , Leakage flows , Modeling , Computational fluid dynamics , Leakage , Stators , Boundary-value problems , Flow (Dynamics) , High pressure (Physics)

Novel Performance Prediction of a Transonic 4.5 Stage Compressor

Andreas Schmitz, Marcel Aulich, Dirk Schönweitz, Eberhard Nicke

GT 2012; 2123-2134https://doi.org/10.1115/GT2012-69003

Abstract

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Topics: Compressors , Design , Airfoils , Flow (Dynamics) , Blades , Computational fluid dynamics , Databases , Dimensions , Geometry , Optimization

PADRAM: Parametric Design and Rapid Meshing System for Complex Turbomachinery Configurations

Andrea Milli, Shahrokh Shahpar

GT 2012; 2135-2148https://doi.org/10.1115/GT2012-69030

Abstract

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Topics: Parametric design , Turbomachinery , Geometry , Computational fluid dynamics , Topology , Blades , Cavities , Computer simulation , Generators , Optimization

Constrained Adjoint-Based Aerodynamic Shape Optimization of a Single-Stage Transonic Compressor

Benjamin Walther, Siva Nadarajah

GT 2012; 2149-2159https://doi.org/10.1115/GT2012-69128

Abstract

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Topics: Compressors , Shape optimization , Optimization , Airfoils , Algorithms , Boundary-value problems , Computer programming , Flow (Dynamics) , Internal flow , Pressure

Three-Dimensional Pressure Controlled Vortex Design of a Turbine Stage

Qingfeng Deng, Qun Zheng, Guoqiang Yue, Hai Zhang, Mingcong Luo

GT 2012; 2161-2171https://doi.org/10.1115/GT2012-69140

Abstract

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Topics: Chemical vapor deposition , Design , Flow (Dynamics) , Pressure , Pressure control , Turbines , Vortices , Pressure gradient

Aerodynamic Optimisation of High Pressure Turbines for Lean-Burn Combustion System

Shahrokh Shahpar, Stefano Caloni

GT 2012; 2173-2182https://doi.org/10.1115/GT2012-69228

Abstract

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Topics: Combustion systems , High pressure (Physics) , Optimization , Turbines , Design , Rotors , Swirling flow , Approximation , Combustion chambers , Computational fluid dynamics

An Evaluation of Mixing Effect on the Recycle Stage of Syngas Compressor Based on Numerical and Experimental Investigations

Liang Ding, Tong Wang, Yao Fu, Bo Yang, Chuangang Gu

GT 2012; 2183-2193https://doi.org/10.1115/GT2012-69257

Abstract

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Topics: Compressors , Syngas , Flow (Dynamics) , High pressure (Physics) , Pressure , Testing , Blades , Impellers , Numerical analysis , Temperature

Investigation of 3D Internal Flow Using New Flux-Reconstruction High Order Method

Yi Lu, Xin Yuan, W. N. Dawes

GT 2012; 2195-2216https://doi.org/10.1115/GT2012-69270

Abstract

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Topics: Internal flow , Engineering simulation , Errors , Galerkin method , Simulation , Flow (Dynamics) , Geometry , Graphics processing units , Jacobian matrices , Navier-Stokes equations

Robust Optimization for Aerodynamic Problems Using Polynomial Chaos and Adjoints

Sriram Shankaran, Andre Marta

GT 2012; 2217-2227https://doi.org/10.1115/GT2012-69580

Abstract

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Topics: Chaos , Optimization , Polynomials , Airfoils , Turbines , Approximation , Design , Optimal control , Optimization algorithms , Tradeoffs

Interpretation of Adjoint Solutions for Turbomachinery Flows

Sriram Shankaran, Andre Marta, Prem Venugopal, Brian Barr, Qiqi Wang

GT 2012; 2229-2242https://doi.org/10.1115/GT2012-69588

Abstract

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Topics: Flow (Dynamics) , Turbomachinery , Geometry , Turbines , Boundary-value problems , Compressors , Density , Design , Optimization algorithms , Pressure

Use of Transition Modeling to Enable the Computation of Losses for Variable-Speed Power Turbine

Ali A. Ameri

GT 2012; 2243-2254https://doi.org/10.1115/GT2012-69591

Abstract

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Topics: Computation , Modeling , Turbines , Flow (Dynamics) , Heat transfer , Blades , Cascades (Fluid dynamics) , Engines , Flat plates , NASA

Nozzle Guide Vane Cooling System Optimization

Julian Girardeau, Frederic Pardo, Jérôme Pailhès, Jean-Pierre Nadeau

GT 2012; 2255-2261https://doi.org/10.1115/GT2012-69600

Abstract

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Topics: Cooling systems , Nozzle guide vanes , Optimization , Design , Engines , Maintenance , Cooling , Evolutionary algorithms , Turbines

Calibration of Gas Turbine Blade Temperature Predictions Using Surrogate Models

John M. McFarland, Grant O. Musgrove, Sung Yong Chang, David L. Ransom

GT 2012; 2263-2272https://doi.org/10.1115/GT2012-69601

Abstract

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Topics: Blades , Calibration , Gas turbines , Temperature , Turbines , Engines , Computational fluid dynamics , Thermal analysis , Thickness measurement

Gas Turbine Blade Stress and Temperature Sensitivity to Turbine Inlet Profile and Cooling Flow

Beom Soo Kim, Bum Shin Kim, Woosung Choi, Grant O. Musgrove, John McFarland, Frank Fierro, David L. Ransom

GT 2012; 2273-2284https://doi.org/10.1115/GT2012-69603

Abstract

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Topics: Blades , Cooling , Flow (Dynamics) , Gas turbines , Stress , Temperature , Turbines , Computer software , Cooling systems , Design

Probabilistic Analysis of Radial Gear Compressors

Thorsten van Lil, Matthias Voigt, Konrad Vogeler, Christian Wacker, Uwe Rockstroh

GT 2012; 2285-2292https://doi.org/10.1115/GT2012-69647

Abstract

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Topics: Compressors , Gears , Design , Algorithms , Compression , Simulation , Electromagnetic scattering , Optimization , Sampling methods , Thermodynamics

Full Design of a Highly Loaded Fan by Multi-Objective Optimization of Through-Flow and High-Fidelity Aero-Mechanical Performances

Michael Joly, Tom Verstraete, Guillermo Paniagua

GT 2012; 2293-2301https://doi.org/10.1115/GT2012-69686

Abstract

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Topics: Design , Flow (Dynamics) , Pareto optimization , Optimization , Computational fluid dynamics , Algorithms , Axial flow , Compressors , Design methodology , Fluids

Unsteady Simulation of a 1.5 Stage Turbine Using an Implicitly Coupled Nonlinear Harmonic Balance Method

Chad H. Custer, Jonathan M. Weiss, Venkataramanan Subramanian, William S. Clark, Kenneth C. Hall

GT 2012; 2303-2317https://doi.org/10.1115/GT2012-69690

Abstract

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Topics: Simulation , Turbines , Blades , Flow (Dynamics) , Computational fluid dynamics , Unsteady flow , Boundary-value problems , Construction , Fluids , Navier-Stokes equations

Gradient Enhanced Surrogate Models Based on Adjoint CFD Methods for the Design of a Counter Rotating Turbofan

Jan Backhaus, Marcel Aulich, Christian Frey, Timea Lengyel, Christian Voß

GT 2012; 2319-2329https://doi.org/10.1115/GT2012-69706

Abstract

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Topics: Computational fluid dynamics , Design , Turbofans , Optimization , Artificial neural networks , Computer-aided design , Function approximation , Modeling , Reynolds-averaged Navier–Stokes equations , Shapes

General Capability of Parametric 3D Blade Design Tool for Turbomachinery

Kiran Siddappaji, Mark G. Turner, Ali Merchant

GT 2012; 2331-2344https://doi.org/10.1115/GT2012-69756

Abstract

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Topics: Blades , Design , Turbomachinery , Shapes , Computer-aided design , Airfoils , Geometry , Splines , Wind turbines

Selection of One-Dimensional Design Parameter ‘Reaction Degree’ for 1^st Stage of a Cooled Gas Turbine

Hina Noor, Magnus Genrup, Torsten Fransson

GT 2012; 2345-2354https://doi.org/10.1115/GT2012-69758

Abstract

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Topics: Design , Gas turbines , Cooling , Flow (Dynamics) , Aerodynamics , Turbines , Performance , Design methodology , High pressure (Physics) , Stators

Engine Performance Prediction for Varied LPT Vane Geometry Utilizing Test Rig Data and Combined CFD and Cycle Models

Michel van Rooij, Oscar Kogenhop, Edward Rademaker, Ray Woodason, Bambang Soemarwoto

GT 2012; 2355-2361https://doi.org/10.1115/GT2012-69838

Abstract

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Topics: Computational fluid dynamics , Cycles , Engines , Geometry , Flow (Dynamics) , Pressure , Turbines , Design , Erosion , Interpolation

Through-Flow Analysis of Air-Cooled Gas Turbines

Milan V. Petrovic, Alexander Wiedermann

GT 2012; 2363-2372https://doi.org/10.1115/GT2012-69854

Abstract

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Topics: Flow (Dynamics) , Gas turbines , Cooling , Turbines , Calibration , Compressors , Coolants , Design , Disks , Film cooling

Multiphase CFD Model Development for a Rotating Centrifugal Separator

Daniel DeMore, William Maier

GT 2012; 2373-2382https://doi.org/10.1115/GT2012-69881

Abstract

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Topics: Computational fluid dynamics , Model development , Modeling , Separation (Technology) , Databases , Design , Drops , Geometry , Optimization , Particulate matter

Optimization of Turbomachinery Flow Surfaces Applying a CFD-Based Throughflow Method

David Pasquale, Giacomo Persico, Stefano Rebay

GT 2012; 2383-2393https://doi.org/10.1115/GT2012-69884

Abstract

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Topics: Computational fluid dynamics , Flow (Dynamics) , Optimization , Turbomachinery , Blades , Compressors , Design , Design methodology , Evolutionary algorithms , Friction

Reformulation of a Three-Dimensional Inverse Design Method for Application in a High-Fidelity CFD Environment

Michel van Rooij, Adam Medd

GT 2012; 2395-2403https://doi.org/10.1115/GT2012-69891

Abstract

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Topics: Computational fluid dynamics , Design methodology , Design , Flow (Dynamics) , Blades , Modeling , Pressure , Viscous flow

Unsteady Flows in Turbomachinery

Experimental Investigation on the Stall Inception of a Counter-Rotating Compressor

Zhuoqi Wang, Wei Yuan, Qiushi Li, Yajun Lu

GT 2012; 2405-2415https://doi.org/10.1115/GT2012-68235

Abstract

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Topics: Compressors , Stall inception , Rotors , Blades , Flow (Dynamics) , Pressure sensors , Wavelets

Experimental Study of Surge Precursors in a High-Speed Multistage Compressor

Nicolas Courtiade, Xavier Ottavy

GT 2012; 2417-2426https://doi.org/10.1115/GT2012-68321

Abstract

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Topics: Compressors , Surges , Rotors , Transients (Dynamics) , Control systems , Frequency response , Machinery , Pressure measurement , Rotation , Sensors

Effects of Blade Damage on the Performance of a Transonic Axial Compressor Rotor

Yanling Li, Abdulnaser Sayma

GT 2012; 2427-2437https://doi.org/10.1115/GT2012-68324

Abstract

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Topics: Blades , Compressors , Damage , Rotors , Surges

Boundary Layer Transition on a Low Pressure Turbine Blade due to Downstream Potential Interaction

Véronique Penin, Pascale Kulisa, François Bario

GT 2012; 2439-2451https://doi.org/10.1115/GT2012-68334

Abstract

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Topics: Boundary layers , Pressure , Turbine blades , Separation (Technology) , Blades , Engines , Rotors , Stators , Turbulence , Cascades (Fluid dynamics)

The Potential of Rotor and Stator Clocking in a 2.5-Stage Low-Speed Axial Compressor

J. Städing, J. Friedrichs, T. Waitz, C. Dobriloff, B. Becker, V. Gümmer

GT 2012; 2453-2466https://doi.org/10.1115/GT2012-68353

Abstract

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Topics: Compressors , Rotors , Stators , Blades , Wakes , Airfoils , Indexing (Machining) , Pressure , Turbomachinery , Axial flow

Investigation of Separating and Utilizing the Influences of Up- and Downstream Blade Rows

Ben Zhao, Ce Yang, Liangjun Hu, Mi Zhou, Du Li

GT 2012; 2467-2481https://doi.org/10.1115/GT2012-68371

Abstract

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Topics: Blades , Pressure , Rotors , Stators , Compressors , Fluctuations (Physics) , Waves

Turbomachines Under Periodic Admission: Axiomatic Performance Prediction

Mehdi Nakhjiri, Peter F. Pelz

GT 2012; 2483-2490https://doi.org/10.1115/GT2012-68398

Abstract

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Topics: Turbomachinery , Calibration , Engines , Steady state , Turbochargers , Uncertainty

Impact of Tip Clearance Size and Rotation Speed on the Surge Onset in a High Pressure Centrifugal Compressor

Nicolas Buffaz, Isabelle Trébinjac

GT 2012; 2491-2500https://doi.org/10.1115/GT2012-68427

Abstract

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Topics: Clearances (Engineering) , Compressors , High pressure (Physics) , Rotation , Surges , Diffusers , Impellers , Blades , Boundary layers , Design

Numerical Study on the Effects of Casing Treatment on Unsteadiness of Tip Leakage Flow in an Axial Compressor

Yoojun Hwang, Shin-Hyoung Kang

GT 2012; 2501-2511https://doi.org/10.1115/GT2012-68444

Abstract

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Topics: Compressors , Leakage flows , Flow (Dynamics) , Rotors , Oscillations , Blades , Clearances (Engineering) , Pressure , Rotation , Unsteady flow

Investigation and Prediction of Steam-Induced Stall-Margin Reduction in Two Transonic Rotor Fans

Anthony J. Gannon, Garth V. Hobson, Collin R. Hedges, Gregory L. Descovich

GT 2012; 2513-2522https://doi.org/10.1115/GT2012-68514

Abstract

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Topics: Fans , Rotors , Steam , Flow (Dynamics) , Compressors , Transients (Dynamics) , Aircraft , Design , Engines , Inflow

Assessment of Steady and Unsteady Model Predictions for a Subsonic Centrifugal Compressor Stage

Y. Bousquet, X. Carbonneau, I. Trebinjac

GT 2012; 2523-2531https://doi.org/10.1115/GT2012-68567

Abstract

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Topics: Compressors , Flow (Dynamics) , Simulation , Diffusers , Impellers , Pressure , Reynolds-averaged Navier–Stokes equations , Stability

Analysis of the Unsteady Flow Field in Turbines by Means of Modal Decomposition

Davide Lengani, Thorsten Selic, Rosario Spataro, Andreas Marn, Emil Göttlich

GT 2012; 2533-2543https://doi.org/10.1115/GT2012-68582

Abstract

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Topics: Turbines , Unsteady flow , Flow (Dynamics) , Blades , Pressure , Rotors , Computational fluid dynamics , Engineering simulation , Oscillations , Probes

Experimental Investigation of the Unsteady Flow Field Downstream of a Counter-Rotating Two-Spool Turbine Rig

Davide Lengani, Cornelia Santner, Rosario Spataro, Berardo Paradiso, Emil Göttlich

GT 2012; 2545-2554https://doi.org/10.1115/GT2012-68583

Abstract

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Topics: Turbines , Unsteady flow , Rotors , Flow (Dynamics) , Pressure , Engines , Fluctuations (Physics) , Aircraft engines , Ducts , High pressure (Physics)

Detailed Measurements of Spike Formation in an Axial Compressor

Stephanie Weichert, Ivor Day

GT 2012; 2555-2565https://doi.org/10.1115/GT2012-68627

Abstract

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Topics: Compressors , Blades , Flow (Dynamics) , Pressure , Stall inception , Annulus , Clearances (Engineering) , Instrumentation , Leakage , Pressure transducers

Origins and Structure of Spike-Type Rotating Stall

G. Pullan, A. M. Young, I. J. Day, E. M. Greitzer, Z. S. Spakovszky

GT 2012; 2567-2579https://doi.org/10.1115/GT2012-68707

Abstract

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Topics: Blades , Clearances (Engineering) , Compressors , Computer simulation , Engineering simulation , Flow separation , Pressure , Rotors , Separation (Technology) , Simulation

Numerical Study of Cavitating Behavior in a Cryogenic Liquid Turbine

Zhilong He, Yunzheng Ge, Jinju Sun, Ke Wang

GT 2012; 2581-2592https://doi.org/10.1115/GT2012-68774

Abstract

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Topics: Turbines , Cavitation , Simulation , Diffusers , Flow (Dynamics) , Design , Ducts , Geometry , Impellers , Separation (Technology)

Numerical Investigation of a Banki Turbine in Transient State: Reaction Ratio Determination

Sergio D. Croquer, Jesus de Andrade, Jorge Clarembaux, Freddy Jeanty, Miguel Asuaje

GT 2012; 2593-2605https://doi.org/10.1115/GT2012-68809

Abstract

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Topics: Transients (Dynamics) , Turbines , Nozzles , Flow (Dynamics) , Computational fluid dynamics , Simulation , Turbulence , Computer simulation , Construction , Cross-flow

Investigation of the Wake Effect From the Centrifugal Splitter Impeller Blade to the Vaned Diffuser

Xuechen Li, Guang Xi, Jiang Hua, Wuqi Gong

GT 2012; 2607-2617https://doi.org/10.1115/GT2012-68927

Abstract

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Topics: Blades , Diffusers , Impellers , Wakes , Chords (Trusses) , Pressure , Flow (Dynamics) , Suction

Shock Induced Vortices in Transonic Compressors: Aerodynamic Effects and Design Correlations

Henry Knobbe, Eberhard Nicke

GT 2012; 2619-2630https://doi.org/10.1115/GT2012-69004

Abstract

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Topics: Compressors , Design , Shock (Mechanics) , Vortices , Blades , Rotors , Simulation , Trajectories (Physics) , Flow (Dynamics) , Gas turbines

The Efficient Computation of Transient Flow in Turbine Blade Rows Using Transformation Methods

Stuart Connell, Brad Hutchinson, Paul Galpin, Rubens Campregher, Philippe Godin

GT 2012; 2631-2640https://doi.org/10.1115/GT2012-69019

Abstract

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Topics: Computation , Turbine blades , Unsteady flow , Wheels , Turbines , Blades , Boundary-value problems , Cavities , Fourier transforms , Geometry

Analysis of Combustor/Vane Interaction With Decoupled and Loosely Coupled Approaches

Simone Salvadori, Giovanni Riccio, Massimiliano Insinna, Francesco Martelli

GT 2012; 2641-2652https://doi.org/10.1115/GT2012-69038

Abstract

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Topics: Combustion chambers , Turbines , High pressure (Physics) , Geometry , Simulation , Blades , Boundary-value problems , Design , Dimensions , Mach number

Reconstruction of the Unsteady Pressure Field in a Low Speed Linear Cascade

Felix Förster, David Sims-Williams, Grant Ingram

GT 2012; 2653-2662https://doi.org/10.1115/GT2012-69156

Abstract

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Topics: Cascades (Fluid dynamics) , Pressure , Probes , Signals , Flow (Dynamics) , Vortices , Synchronization , Unsteady flow

An Explanation for Flow Features of Spike-Type Stall Inception in an Axial Compressor Rotor

Kazutoyo Yamada, Hiroaki Kikuta, Ken-ichiro Iwakiri, Masato Furukawa, Satoshi Gunjishima

GT 2012; 2663-2675https://doi.org/10.1115/GT2012-69186

Abstract

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Topics: Compressors , Flow (Dynamics) , Rotors , Stall inception , Pressure , Vortices , Blades , Separation (Technology) , Transients (Dynamics) , Eddies (Fluid dynamics)

Experimentally Observed Unsteady Work at Inlet to and Exit From an Axial Flow Turbine Rotor

Martin G. Rose, Philipp Jenny, Jochen Gier, Reza S. Abhari

GT 2012; 2677-2686https://doi.org/10.1115/GT2012-69207

Abstract

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Topics: Axial flow , Rotors , Turbines , Wakes , Pressure , Vortices , Cascades (Fluid dynamics) , Computational fluid dynamics , Flow (Dynamics) , Fluids

Unsteady Rotor Hub Passage Vortex Behavior in the Presence of Purge Flow in an Axial Low Pressure Turbine

P. Jenny, R. S. Abhari, M. G. Rose, M. Brettschneider, K. Engel, J. Gier

GT 2012; 2687-2698https://doi.org/10.1115/GT2012-69256

Abstract

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Topics: Flow (Dynamics) , Pressure , Rotors , Turbines , Vortices , Blades , Entropy , Probes , Computation , Cooling

Separation and Relaminarization at the Circular Arc Leading Edge of a Controlled Diffusion Compressor Stator

Samuel C. T. Perkins, Alan D. Henderson

GT 2012; 2699-2710https://doi.org/10.1115/GT2012-69384

Abstract

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Topics: Compressors , Diffusion (Physics) , Separation (Technology) , Stators , Boundary layers , Reynolds number , Suction , Bubbles , Blades , Flow (Dynamics)

Influence of Mach Number and Aerodynamic Loading on Rotating Instability in an Annular Compressor Cascade

Christian Beselt, Dieter Peitsch

GT 2012; 2711-2720https://doi.org/10.1115/GT2012-69393

Abstract

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Topics: Cascades (Fluid dynamics) , Compressors , Mach number , Flow (Dynamics) , Clearances (Engineering) , Pressure , Outflow , Spectral energy distribution

Influence of Inlet Guide Vane Wakes on the Passage Flow in a Transonic Axial Compressor

S. Leichtfuss, C. Biela, H.-P. Schiffer, F. Heinichen

GT 2012; 2721-2729https://doi.org/10.1115/GT2012-69485

Abstract

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Topics: Compressors , Flow (Dynamics) , Inlet guide vanes , Vortices , Wakes

Experimental and Analytical Surge Cycle Analysis of a High Pressure Aero Engine Compressor

Phillip Waniczek, Harald Schoenenborn, Peter Jeschke

GT 2012; 2731-2741https://doi.org/10.1115/GT2012-69585

Abstract

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Topics: Aircraft engines , Compressors , Cycles , High pressure (Physics) , Surges , Flow (Dynamics) , Rotors , Stators , Engineering simulation , Probes

Unsteady Wake-Blade Interaction: A Correlation Between Surface Pressure Fluctuations and Loss Generation

Marc H.-O. Biester, Michael Henke, Jörg R. Seume, Yavuz Gündogdu, Karl Engel

GT 2012; 2743-2752https://doi.org/10.1115/GT2012-69616

Abstract

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Topics: Blades , Fluctuations (Physics) , Pressure , Wakes , Flow (Dynamics) , Turbines , Computation , Deformation , Entropy , Unsteady flow

Unsteady Aerodynamics of a Centrifugal Compressor Stage: Validation of Two Different CFD Solvers

Oliver Borm, Hans-Peter Kau

GT 2012; 2753-2764https://doi.org/10.1115/GT2012-69636

Abstract

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Topics: Aerodynamics , Compressors , Computational fluid dynamics , Computer simulation , Annulus , Computation , Design , Diffusers , Simulation , Steady state

Validation of a Surge Model by Full Scale Testing

Jan P. M. Smeulers, Néstor González Díez, Harmen Slot

GT 2012; 2765-2774https://doi.org/10.1115/GT2012-69969

Abstract

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Topics: Compressors , Control equipment , Surges , Testing

Flow-Rate Observers in the Suppression of Compressor Surge Using Active Magnetic Bearings

Se Young Yoon, Zongli Lin, Wei Jiang, Paul E. Allaire

GT 2012; 2775-2784https://doi.org/10.1115/GT2012-70011

Abstract

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Topics: Compressors , Flow (Dynamics) , Magnetic bearings , Surges , Control equipment , Actuators , Compression , Damage , Flow instability , Pressure

All Years

Proceedings Papers

Turbomachinery

Axial Flow Fan and Compressor Aerodynamics

Radial Turbomachinery Aerodynamics

Axial Flow Turbine Aerodynamics

Ducts and Component Interactions