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Volume 7: Turbomachinery, Parts A and B

Turbomachinery

Axial Flow Fan and Compressor Aerodynamics

Stall Detection Within the Low Pressure Compressor of a Twin-Spool Turbofan Engine by Tip Flow Analysis

Stefan Bindl, Marcel Sto¨ßel, Reinhard Niehuis

GT 2009; 1-10https://doi.org/10.1115/GT2009-59032

View Articletitled, Stall Detection Within the Low Pressure Compressor of a Twin-Spool Turbofan Engine by Tip Flow Analysis

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Topics: Compressors , Engines , Flow (Dynamics) , Pressure , Turbofans , Algorithms , Blades , Countermeasures , Jet propulsion , Vehicles

Non-Axisymmetric End Wall Profiling in Transonic Compressors—Part I: Improving the Static Pressure Recovery at Off-Design Conditions by Sequential Hub and Shroud End Wall Profiling

Steffen Reising, Heinz-Peter Schiffer

GT 2009; 11-24https://doi.org/10.1115/GT2009-59133

Abstract

View Articletitled, Non-Axisymmetric End Wall Profiling in Transonic Compressors—Part I: Improving the Static Pressure Recovery at Off-Design Conditions by Sequential Hub and Shroud End Wall Profiling

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Topics: Compressors , Design , Pressure , Separation (Technology) , Stators , Flow (Dynamics) , Optimization , Surges , Corners (Structural elements) , Cross-flow

Non-Axisymmetric End Wall Profiling in Transonic Compressors—Part II: Design Study of a Transonic Compressor Rotor Using Non-Axisymmetric End Walls—Optimization Strategies and Performance

Steffen Reising, Heinz-Peter Schiffer

GT 2009; 25-37https://doi.org/10.1115/GT2009-59134

Abstract

View Articletitled, Non-Axisymmetric End Wall Profiling in Transonic Compressors—Part II: Design Study of a Transonic Compressor Rotor Using Non-Axisymmetric End Walls—Optimization Strategies and Performance

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Topics: Compressors , Design , Optimization , Rotors , Flow (Dynamics) , Pressure , Boundary layers , Chain , Computational fluid dynamics , Cross-flow

Enhancing the Stability of Subsonic Compressors Using Casing Grooves

Tim Houghton, Ivor Day

GT 2009; 39-48https://doi.org/10.1115/GT2009-59210

Abstract

View Articletitled, Enhancing the Stability of Subsonic Compressors Using Casing Grooves

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Topics: Compressors , Stability , Flow (Dynamics) , Blades , Computational methods , Design , Outflow , Rotors

Experimental Investigation on the Effects of Unsteady Excitation Frequency of Casing Treatment on Transonic Compressor Performance

Wei Tuo, Yajun Lu, Wei Yuan, Sheng Zhou, Qiushi Li

GT 2009; 49-55https://doi.org/10.1115/GT2009-59281

Abstract

View Articletitled, Experimental Investigation on the Effects of Unsteady Excitation Frequency of Casing Treatment on Transonic Compressor Performance

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Topics: Compressors , Excitation , Design , Flow (Dynamics) , Rotors

The Design of Highly Loaded Axial Compressors

Tony Dickens, Ivor Day

GT 2009; 57-67https://doi.org/10.1115/GT2009-59291

Abstract

View Articletitled, The Design of Highly Loaded Axial Compressors

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Topics: Compressors , Design , Computational fluid dynamics , Pressure , Stators , Flow (Dynamics) , Rotors , Blades , Corners (Structural elements) , Cycles

Application of a Navier-Stokes Solver to the Study of Open Rotor Aerodynamics

Alexios Zachariadis, Cesare A. Hall

GT 2009; 69-80https://doi.org/10.1115/GT2009-59332

Abstract

View Articletitled, Application of a Navier-Stokes Solver to the Study of Open Rotor Aerodynamics

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Topics: Aerodynamics , Rotors , Boundary-value problems , Computational fluid dynamics , Design , Engines , Turbomachinery

Riblets in Turbulent Flow Regimes of 2-D Compressor Blades

Stephan Klumpp, Matthias Meinke, Wolfgang Schro¨der, Bjo¨rn Feldhaus, Fritz Klocke

GT 2009; 81-90https://doi.org/10.1115/GT2009-59352

Abstract

View Articletitled, Riblets in Turbulent Flow Regimes of 2-D Compressor Blades

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Topics: Blades , Compressors , Turbulence , Durability , Airfoils , Bending (Stress) , Deformation , Diffusion (Physics) , Drag reduction , Flow (Dynamics)

A Three-Dimensional CFD Design Study of a Circulation Control Inlet Guide Vane for a Transonic Compressor

Sandra L. Gunter, Stephen A. Guillot, Wing F. Ng, S. Todd Bailie

GT 2009; 91-101https://doi.org/10.1115/GT2009-59360

Abstract

View Articletitled, A Three-Dimensional CFD Design Study of a Circulation Control Inlet Guide Vane for a Transonic Compressor

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Topics: Compressors , Computational fluid dynamics , Design , Inlet guide vanes , Flow turning , Mach number , Optimization , Airfoils , Geometry , Manufacturing

Experimental Investigation of Two-Phase Flow Phenomena in Transonic Compressor Cascades

Tjark Eisfeld, Franz Joos

GT 2009; 103-112https://doi.org/10.1115/GT2009-59365

Abstract

View Articletitled, Experimental Investigation of Two-Phase Flow Phenomena in Transonic Compressor Cascades

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Topics: Compressors , Two-phase flow , Drops , Blades , Air flow , Flow (Dynamics) , Water , Collisions (Physics) , Compression , Deformation

Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part I: Principal Cascade Design and Compressor Application

Christian Dorfner, Alexander Hergt, Eberhard Nicke, Reinhard Moenig

GT 2009; 113-120https://doi.org/10.1115/GT2009-59383

Abstract

View Articletitled, Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part I: Principal Cascade Design and Compressor Application

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Topics: Cascades (Fluid dynamics) , Compressors , Design , Flow (Dynamics) , Optimization , Rotors , Blades , Chain , Corners (Structural elements) , Design methodology

Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part II: Experimental and Numerical Cascade Investigation

Alexander Hergt, Christian Dorfner, Wolfgang Steinert, Eberhard Nicke, Heinz-Adolf Schreiber

GT 2009; 121-131https://doi.org/10.1115/GT2009-59384

Abstract

View Articletitled, Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part II: Experimental and Numerical Cascade Investigation

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Topics: Cascades (Fluid dynamics) , Compressors , Design , Flow (Dynamics) , Blades , Boundary layers , Vortices , Computer simulation , Corners (Structural elements) , Flow simulation

Investigation of Skewed Slot Casing on Transonic Axial-Flow Fan Stage

Jialing Lu, Wuli Chu, Yanhui Wu

GT 2009; 133-144https://doi.org/10.1115/GT2009-59417

Abstract

View Articletitled, Investigation of Skewed Slot Casing on Transonic Axial-Flow Fan Stage

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Topics: Axial flow , Boundary-value problems , Computational fluid dynamics , Computer software , Design , Rotors , Simulation , Turbochargers

Effects of Endwall Profiling on Axial Flow Compressor Stage

Jialing Lu, Wuli Chu, Yanhui Wu

GT 2009; 145-154https://doi.org/10.1115/GT2009-59418

Abstract

View Articletitled, Effects of Endwall Profiling on Axial Flow Compressor Stage

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Topics: Axial flow , Compressors , Stators , Corners (Structural elements) , Separation (Technology) , Engineering design , Flow (Dynamics) , Pressure , Turbines

Examination of Rotating Stall Inception in a Small High Speed Axial Compressor

L. G. N. Bennett, W. D. E. Allan

GT 2009; 155-165https://doi.org/10.1115/GT2009-59420

Abstract

View Articletitled, Examination of Rotating Stall Inception in a Small High Speed Axial Compressor

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Topics: Compressors , Stall inception , Pressure measurement , Air flow , Gasoline engines , Inspection , Pneumatic valves , Pressure , Service life (Equipment) , Signal processing

Fan Root Aerodynamics for Large Bypass Gas Turbine Engines: Influence on the Engine Performance and 3D Design

Giulio Zamboni, Liping Xu

GT 2009; 167-178https://doi.org/10.1115/GT2009-59498

Abstract

View Articletitled, Fan Root Aerodynamics for Large Bypass Gas Turbine Engines: Influence on the Engine Performance and 3D Design

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Topics: Aerodynamics , Design , Engines , Gas turbines , Flow (Dynamics) , Compressors , Leakage flows , Computational fluid dynamics , Cycles , Fuel consumption

Online Stall Control With the Digital Signal Processing Method in an Axial Compressor

Zhiting Tong, Lin Li, Chaoqun Nie, Bin Lin, Yaoxin Cui, Wei Qi

GT 2009; 179-186https://doi.org/10.1115/GT2009-59509

Abstract

View Articletitled, Online Stall Control With the Digital Signal Processing Method in an Axial Compressor

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Topics: Compressors , Signal processing , Control systems , Signals , Control theory , Unsteady flow , Valves

Effects of Upstream Wake Phasing on Transonic Axial Compressor Performance

S. P. R. Nolan, B. B. Botros, C. S. Tan, J. J. Adamczyk, E. M. Greitzer, S. E. Gorrell

GT 2009; 187-201https://doi.org/10.1115/GT2009-59556

Abstract

View Articletitled, Effects of Upstream Wake Phasing on Transonic Axial Compressor Performance

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Topics: Compressors , Wakes , Rotors , Pressure , Blades , Flow (Dynamics) , Vortices , Wake turbulence , Clearances (Engineering) , Stability

Numerical Study on End-Wall Flow in Highly Loaded Supercritical Compressor Cascades

Bin Jiang, Songtao Wang, Guotai Feng, Zhongqi Wang

GT 2009; 203-214https://doi.org/10.1115/GT2009-59589

Abstract

View Articletitled, Numerical Study on End-Wall Flow in Highly Loaded Supercritical Compressor Cascades

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Topics: Compressors , Flow (Dynamics) , Cascades (Fluid dynamics) , Boundary layers , Flow separation , Optimization , Shock waves , Suction , Aerodynamics , Computer simulation

Rotor Casing Contouring in High Pressure Stages of Heavy Duty Gas Turbine Compressors With Large Tip Clearance Heights

Georg Kro¨ger, Christian Cornelius, Eberhard Nicke

GT 2009; 215-225https://doi.org/10.1115/GT2009-59626

Abstract

View Articletitled, Rotor Casing Contouring in High Pressure Stages of Heavy Duty Gas Turbine Compressors With Large Tip Clearance Heights

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Topics: Clearances (Engineering) , Compressors , Gas turbines , High pressure (Physics) , Rotors , Pressure , Blades , Design , Flow (Dynamics) , Geometry

Experimental and Numerical Analysis of Axial Skewed Slot Casing Treatments for a Transonic Compressor Stage

Florian C. T. Danner, Hans-Peter Kau, Martin M. Mu¨ller, Heinz-Peter Schiffer, Giovanni A. Brignole

GT 2009; 227-238https://doi.org/10.1115/GT2009-59647

Abstract

View Articletitled, Experimental and Numerical Analysis of Axial Skewed Slot Casing Treatments for a Transonic Compressor Stage

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Topics: Compressors , Numerical analysis , Pressure , Design , Engineering simulation , Flow (Dynamics) , Rotors , Simulation , Cavities , Computational fluid dynamics

Influence of Surface Roughness on the Performance of a Compressor Blade in a Linear Cascade: Experiment and Modeling

Seung Chul Back, In Cheol Jeong, Jeong Lak Sohn, Seung Jin Song

GT 2009; 239-247https://doi.org/10.1115/GT2009-59703

Abstract

View Articletitled, Influence of Surface Roughness on the Performance of a Compressor Blade in a Linear Cascade: Experiment and Modeling

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Topics: Blades , Cascades (Fluid dynamics) , Compressors , Modeling , Surface roughness , Flow (Dynamics) , Gas turbines , Pressure , Testing performance

Unsteady Pressure Measurements in a Single Stage Low Pressure Axial Compressor: Tip Vortex Flow and Stall Inception

J. F. Brouckaert, N. Van de Wyer, B. Farkas, F. Ullmann, J. Desset, J. de Laborderie, M. Chome´, S. Hiernaux

GT 2009; 249-262https://doi.org/10.1115/GT2009-59771

Abstract

View Articletitled, Unsteady Pressure Measurements in a Single Stage Low Pressure Axial Compressor: Tip Vortex Flow and Stall Inception

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Topics: Compressors , Flow (Dynamics) , Pressure , Pressure measurement , Stall inception , Wake turbulence , Rotors , Blades , Computational fluid dynamics , Engineering simulation

Effect of Real Geometry on Compressor Performance Predictions

Luca di Mare, Mehmet Imregun, Jeffrey S. Green

GT 2009; 263-271https://doi.org/10.1115/GT2009-59824

Abstract

View Articletitled, Effect of Real Geometry on Compressor Performance Predictions

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Topics: Compressors , Geometry , Blades , Flow (Dynamics) , Rotors , Annulus , Computational fluid dynamics , Deformation , Delays , Pressure

Combined Effects of Forward Sweep and Tip Clearance on the Performance of Axial Flow Compressor Stage

P. V. Ramakrishna, M. Govardhan

GT 2009; 273-282https://doi.org/10.1115/GT2009-59840

Abstract

View Articletitled, Combined Effects of Forward Sweep and Tip Clearance on the Performance of Axial Flow Compressor Stage

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Topics: Axial flow , Blades , Clearances (Engineering) , Compressors

A Study of Stall Inceptions in a Low-Speed Axial-Flow Compressor With Various Radial Loadings

J. Zhang, F. Lin, J. Chen, C. Nie

GT 2009; 283-293https://doi.org/10.1115/GT2009-59850

Abstract

View Articletitled, A Study of Stall Inceptions in a Low-Speed Axial-Flow Compressor With Various Radial Loadings

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Topics: Axial flow , Compressors , Stall inception , Flow (Dynamics) , Separation (Technology) , Blades , Computer simulation

Stability Enhancement of a Multi Stage Compressor by Air Injection

Sven-Ju¨rgen Hiller, Roland Matzgeller, Wolfgang Horn

GT 2009; 295-303https://doi.org/10.1115/GT2009-59868

Abstract

View Articletitled, Stability Enhancement of a Multi Stage Compressor by Air Injection

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Topics: Compressors , Stability , Flow (Dynamics) , Nozzles , Rotors , Temperature

Active Flow Control to Improve the Aerodynamic Performance of Axial Turbomachines

Lars Neuhaus, Olaf Wiederhold, Wolfgang Neise, Lars Enghardt, Rudibert King, Marius Swoboda

GT 2009; 305-312https://doi.org/10.1115/GT2009-60008

Abstract

View Articletitled, Active Flow Control to Improve the Aerodynamic Performance of Axial Turbomachines

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Topics: Flow control , Turbomachinery , Flow (Dynamics) , Pressure , Blades , Rotors , Clearances (Engineering) , Control algorithms , Control equipment , Impellers

Quasi-Three Dimensional Verification of the Modular Axial Compressor Design Approach

Magdy S. Attia, Christopher Hemerly

GT 2009; 313-321https://doi.org/10.1115/GT2009-60132

Abstract

View Articletitled, Quasi-Three Dimensional Verification of the Modular Axial Compressor Design Approach

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Topics: Compressors , Design , Life cycle costing

A Method for Evaluating the Aerodynamic Stability of Multi-Stage Axial-Flow Compressors

Tsuguji Nakano, Andy Breeze-Stringfellow

GT 2009; 323-334https://doi.org/10.1115/GT2009-60220

Abstract

View Articletitled, A Method for Evaluating the Aerodynamic Stability of Multi-Stage Axial-Flow Compressors

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Topics: Axial flow , Compressors , Stability , Blades , Density , Ducts , Flow (Dynamics) , Pressure , Steady state , Engineers

CFD Simulations of the TP400 IPC With Enhanced Casing Treatment in Off-Design Operating Conditions

Karl Engel, Carsten Zscherp, Nina Wolfrum, Dirk Nu¨rnberger, Edmund Ku¨geler

GT 2009; 335-343https://doi.org/10.1115/GT2009-60324

Abstract

View Articletitled, CFD Simulations of the TP400 IPC With Enhanced Casing Treatment in Off-Design Operating Conditions

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Topics: Computational fluid dynamics , Design , Simulation , Flow (Dynamics) , Geometry , Resolution (Optics) , Actuators , Chain , Compressors , Pressure

Design Methods and CFD Modeling for Turbomachinery

The Discrete Adjoint of a Turbomachinery RANS Solver

Christian Frey, Hans-Peter Kersken, Dirk Nu¨rnberger

GT 2009; 345-354https://doi.org/10.1115/GT2009-59062

Abstract

View Articletitled, The Discrete Adjoint of a Turbomachinery RANS Solver

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Topics: Reynolds-averaged Navier–Stokes equations , Turbomachinery , Boundary-value problems , Flow (Dynamics) , Compressors , Computation , Flow simulation , Flux (Metallurgy) , Shape optimization

Analysis of Gas Turbine Rotating Cavities by an One-Dimensional Model

Riccardo Da Soghe, Bruno Facchini, Luca Innocenti, Mirko Micio

GT 2009; 355-364https://doi.org/10.1115/GT2009-59185

Abstract

View Articletitled, Analysis of Gas Turbine Rotating Cavities by an One-Dimensional Model

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Topics: Cavities , Gas turbines , Flow (Dynamics) , Design , Computational fluid dynamics , Rotors , Stators , Drag (Fluid dynamics) , Friction , Heat transfer

Compressor Design From Specification to Validation: Application of a Fast and Reliable Process

Marco Micheli, Wolfgang Kappis, Gianfranco Guidati, Markus Felderhoff

GT 2009; 365-372https://doi.org/10.1115/GT2009-59217

Abstract

View Articletitled, Compressor Design From Specification to Validation: Application of a Fast and Reliable Process

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Topics: Compressors , Design , Engineering disciplines , Engines , Blades , Finite element methods , Finite element model , Stress , Surges , Aerodynamics

Concurrent Aerodynamic-Aeromechanic Design Optimization for Turbomachinery Blades Using Adjoint Method

D. X. Wang, L. He

GT 2009; 373-383https://doi.org/10.1115/GT2009-59240

Abstract

View Articletitled, Concurrent Aerodynamic-Aeromechanic Design Optimization for Turbomachinery Blades Using Adjoint Method

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Topics: Blades , Design , Optimization , Turbomachinery , Flow (Dynamics) , Unsteady flow , Damping , Geometry , Navier-Stokes equations , Performance evaluation

Development of Adjoint Solvers for Engineering Gradient-Based Turbomachinery Design Applications

Andre C. Marta, Sriram Shankaran, D. Graham Holmes, Alexander Stein

GT 2009; 385-397https://doi.org/10.1115/GT2009-59297

Abstract

View Articletitled, Development of Adjoint Solvers for Engineering Gradient-Based Turbomachinery Design Applications

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Topics: Design , Turbomachinery , Computational fluid dynamics , Approximation , Machinery , Optimization

Fully Parametric High-Fidelity CFD Model for the Design Optimisation of the Cyclic Stagger Pattern of a Set of Fan Outlet Guide Vanes

Andrea Milli, Olivier Bron

GT 2009; 399-408https://doi.org/10.1115/GT2009-59416

Abstract

View Articletitled, Fully Parametric High-Fidelity CFD Model for the Design Optimisation of the Cyclic Stagger Pattern of a Set of Fan Outlet Guide Vanes

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Topics: Computational fluid dynamics , Design , Guide vanes , Optimization , Turbomachinery , Geometry , Aerodynamics , Annulus , Computer software , Engineering simulation

A Hybrid Unstructured/Spectral Method for the Resolution of Navier-Stokes Equations

Roque Corral, Javier Crespo

GT 2009; 409-418https://doi.org/10.1115/GT2009-59491

Abstract

View Articletitled, A Hybrid Unstructured/Spectral Method for the Resolution of Navier-Stokes Equations

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Topics: Navier-Stokes equations , Resolution (Optics) , Finite volume methods , Bubbles , Dimensions , Airfoils , Approximation , Fast Fourier transforms , Flat plates , Pressure gradient

Analytical Modelling of a Fluid Coupling

A. Ch. H. Kruisbrink, S. J. Pickering

GT 2009; 419-431https://doi.org/10.1115/GT2009-59528

Abstract

View Articletitled, Analytical Modelling of a Fluid Coupling

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Topics: Hydraulic couplings , Modeling , Pressure , Computational fluid dynamics , Flow (Dynamics) , Pumps , Turbines , Vortices , Aircraft engines , Angular momentum

Calculations of High-Lift Cascades in Low Pressure Turbine Conditions Using a Three-Equation Model

Roberto Pacciani, Michele Marconcini, Atabak Fadai-Ghotbi, Sylvain Lardeau, Michael A. Leschziner

GT 2009; 433-442https://doi.org/10.1115/GT2009-59557

Abstract

View Articletitled, Calculations of High-Lift Cascades in Low Pressure Turbine Conditions Using a Three-Equation Model

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Topics: Pressure , Turbines , Separation (Technology) , Turbulence , Flow (Dynamics) , Kinetic energy , Blades , Boundary layers , Cascades (Fluid dynamics) , Eddies (Fluid dynamics)

Design Optimization of a Centrifugal Compressor Impeller Using Radial Basis Neural Network Method

Jin-Hyuk Kim, Jae-Ho Choi, Kwang-Yong Kim

GT 2009; 443-451https://doi.org/10.1115/GT2009-59666

Abstract

View Articletitled, Design Optimization of a Centrifugal Compressor Impeller Using Radial Basis Neural Network Method

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Topics: Artificial neural networks , Compressor impellers , Design , Optimization , Compressors , Impellers , Approximation , Experimental design , Flow (Dynamics) , Navier-Stokes equations

Large Eddy Simulation of a Controlled-Diffusion Cascade Blade at Varying Flow Inlet Angles

W. Andrew McMullan, Gary J. Page

GT 2009; 453-466https://doi.org/10.1115/GT2009-59668

Abstract

View Articletitled, Large Eddy Simulation of a Controlled-Diffusion Cascade Blade at Varying Flow Inlet Angles

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Topics: Blades , Cascades (Fluid dynamics) , Diffusion (Physics) , Flow (Dynamics) , Large eddy simulation , Boundary layers , Pressure , Simulation , Design , Resolution (Optics)

Fully Three-Dimensional Viscous Semi-Inverse Method for Subsonic Mixed-Flow and Radial Impeller Design

Min Ji, T. Q. Dang, Michael J. Cave

GT 2009; 467-476https://doi.org/10.1115/GT2009-59679

Abstract

View Articletitled, Fully Three-Dimensional Viscous Semi-Inverse Method for Subsonic Mixed-Flow and Radial Impeller Design

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Topics: Design , Flow (Dynamics) , Impellers , Blades , Design methodology , Algorithms , Boundary-value problems , Geometry , Manufacturing , Pressure

Dual Point Redesign of Axial Turbines Using a Viscous Inverse Design Method

Benedikt Roidl, Wahid Ghaly

GT 2009; 477-487https://doi.org/10.1115/GT2009-59707

Abstract

View Articletitled, Dual Point Redesign of Axial Turbines Using a Viscous Inverse Design Method

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Topics: Design methodology , Turbines , Blades , Pressure , Rotors , Stators , Turbulence , Algebra , Design , Navier-Stokes equations

A Strategy for Multi-Point Shape Optimization of Turbine Stages in Three-Dimensional Flow

Mohammad Arabnia, Wahid Ghaly

GT 2009; 489-502https://doi.org/10.1115/GT2009-59708

Abstract

View Articletitled, A Strategy for Multi-Point Shape Optimization of Turbine Stages in Three-Dimensional Flow

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Topics: Flow (Dynamics) , Shape optimization , Turbines , Optimization , Artificial neural networks , Design , Stators , Approximation , Blades , Computational fluid dynamics

Application of Simple Gradient-Based Method and Multi-Section Blade Parameterization Technique to Aerodynamic Design Optimization of a 3D Transonic Single Rotor Compressor

N. X. Chen, H. W. Zhang, Q. Xu, W. G. Huang

GT 2009; 503-512https://doi.org/10.1115/GT2009-59734

Abstract

View Articletitled, Application of Simple Gradient-Based Method and Multi-Section Blade Parameterization Technique to Aerodynamic Design Optimization of a 3D Transonic Single Rotor Compressor

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Topics: Blades , Compressors , Design , Optimization , Rotors , Turbomachinery , Computation , Generators , Mesh generation , NASA

Duct Design in Subsonic and Supersonic Flow Regimes With and Without Normal Shock Wave Using Flexible String Algorithm

Mahdi Nili-Ahmadabadi, Ali Hajilouy-Benisi, Mohammad Durali, Farhad Ghadak

GT 2009; 513-523https://doi.org/10.1115/GT2009-59744

Abstract

View Articletitled, Duct Design in Subsonic and Supersonic Flow Regimes With and Without Normal Shock Wave Using Flexible String Algorithm

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Topics: Algorithms , Design , Ducts , Shock waves , String , Supersonic flow , Flow (Dynamics) , Deformation , Shapes , Boundary-value problems

Optimization of Variable Stator’s Angle for Off Design Compression System Using Streamline Curvature Method

Abdollah Shadaram, Alireza Fathi, Ruhollah Azizi

GT 2009; 525-532https://doi.org/10.1115/GT2009-59772

Abstract

View Articletitled, Optimization of Variable Stator’s Angle for Off Design Compression System Using Streamline Curvature Method

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Topics: Compression , Design , Optimization , Stators

Application of Topology-Free Optimization to Manage Cooled Turbine Tip Heat Load

W. N. Dawes, W. P. Kellar, G. A. Richardson

GT 2009; 533-543https://doi.org/10.1115/GT2009-59817

Abstract

View Articletitled, Application of Topology-Free Optimization to Manage Cooled Turbine Tip Heat Load

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Topics: Heat , Optimization , Stress , Topology , Turbines , Geometry , Cooling , Design , Blades , Computational fluid dynamics

Optimum Design and Experimental Study of a Very Low-Specific-Speed Centrifugal Blower Blade

Xinwei Shu, Chuangang Gu, Tong Wang, Bo Yang

GT 2009; 545-553https://doi.org/10.1115/GT2009-59823

Abstract

View Articletitled, Optimum Design and Experimental Study of a Very Low-Specific-Speed Centrifugal Blower Blade

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Topics: Blades , Design , Friction , Disks , Flow (Dynamics) , Gases , Impellers , Leakage , Manufacturing , Optimization

A New Concept of a Two-Dimensional Supersonic Relative Inlet Mach Number Compressor Cascade

Toyotaka Sonoda, Markus Olhofer, Toshiyuki Arima, Bernhard Sendhoff

GT 2009; 555-565https://doi.org/10.1115/GT2009-59926

Abstract

View Articletitled, A New Concept of a Two-Dimensional Supersonic Relative Inlet Mach Number Compressor Cascade

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Topics: Cascades (Fluid dynamics) , Compressors , Mach number , Computational fluid dynamics , Airfoils , Blades , Compression , Design , Evolutionary algorithms , Flow (Dynamics)

Validation of the Non-Linear Harmonic Approach for Quasi-Unsteady Simulations in Turbomachinery

Michael Hembera, Andreas Loos, Andreas Ku¨hrmann, Florian C. T. Danner, Hans-Peter Kau, Erik Johann

GT 2009; 567-577https://doi.org/10.1115/GT2009-59933

Abstract

View Articletitled, Validation of the Non-Linear Harmonic Approach for Quasi-Unsteady Simulations in Turbomachinery

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Topics: Simulation , Turbomachinery , Blades , Flow (Dynamics) , Compressors , Annulus , Boundary-value problems , Machinery , Rotors , Stators

Development and Validation of a New Universal Through Flow Method for Axial Compressors

Milan V. Petrovic, Alexander Wiedermann, Milan B. Banjac

GT 2009; 579-588https://doi.org/10.1115/GT2009-59938

Abstract

View Articletitled, Development and Validation of a New Universal Through Flow Method for Axial Compressors

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Topics: Compressors , Flow (Dynamics) , Boundary layers , Calibration , Design , Finite element analysis , Gas turbines , Robustness

Turbocharger Design for a 1.8 Liter Turbocharged Gasoline Engine Using an Integrated Method

Tao Chen, Weilin Zhuge, Xinqian Zheng, Yangjun Zhang, Yongsheng He

GT 2009; 589-598https://doi.org/10.1115/GT2009-59951

Abstract

View Articletitled, Turbocharger Design for a 1.8 Liter Turbocharged Gasoline Engine Using an Integrated Method

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Topics: Design , Gasoline engines , Turbochargers , Engines , Fuel consumption , Carbon dioxide , Design methodology , Emissions , Engineering prototypes , Flow (Dynamics)

Multiobjective Optimization Approach to Multidisciplinary Design of a Three-Dimensional Transonic Compressor Blade

Chang Luo, Liming Song, Jun Li, Zhenping Feng

GT 2009; 599-608https://doi.org/10.1115/GT2009-59982

Abstract

View Articletitled, Multiobjective Optimization Approach to Multidisciplinary Design of a Three-Dimensional Transonic Compressor Blade

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Topics: Blades , Compressors , Design , Pareto optimization , Algorithms , Turbomachinery , Optimization , Pressure , Stress , B-splines

2D Viscous Aerodynamic Shape Design Optimization for Turbine Blades Based on Adjoint Method

Haitao Li, Liming Song, Yingchen Li, Zhenping Feng

GT 2009; 609-617https://doi.org/10.1115/GT2009-59999

Abstract

View Articletitled, 2D Viscous Aerodynamic Shape Design Optimization for Turbine Blades Based on Adjoint Method

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Topics: Optimization , Shape design , Turbine blades , Design , Blades , Boundary-value problems , Turbomachinery , Algorithms , Cascades (Fluid dynamics) , Compressible flow

An Accelerated 3D Navier-Stokes Solver for Flows in Turbomachines

Tobias Brandvik, Graham Pullan

GT 2009; 619-629https://doi.org/10.1115/GT2009-60052

Abstract

View Articletitled, An Accelerated 3D Navier-Stokes Solver for Flows in Turbomachines

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Topics: Flow (Dynamics) , Turbomachinery , Graphics processing units , Leakage , Simulation , Turbines

A Model for Potential Deterministic Effects in Transonic Compressor Flows

Stefan Stollenwerk, Dirk Nu¨rnberger

GT 2009; 631-639https://doi.org/10.1115/GT2009-60105

Abstract

View Articletitled, A Model for Potential Deterministic Effects in Transonic Compressor Flows

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Topics: Compressors , Flow (Dynamics) , Blades , Cascades (Fluid dynamics) , Rotors , Shock (Mechanics) , Stators , Stress , Wakes , Flat plates

Reliable and Accurate Prediction of Three-Dimensional Separation in Asymmetric Diffusers Using Large-Eddy Simulation

Hayder Schneider, Dominic von Terzi, Hans-Jo¨rg Bauer, Wolfgang Rodi

GT 2009; 641-650https://doi.org/10.1115/GT2009-60110

Abstract

View Articletitled, Reliable and Accurate Prediction of Three-Dimensional Separation in Asymmetric Diffusers Using Large-Eddy Simulation

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Topics: Diffusers , Large eddy simulation , Separation (Technology) , Flow (Dynamics) , Reynolds-averaged Navier–Stokes equations , Bubbles , Pressure

Three-Dimensional Aerodynamic Design Optimization of a Turbine Blade by Using an Adjoint Method

Jiaqi Luo, Juntao Xiong, Feng Liu, Ivan McBean

GT 2009; 651-664https://doi.org/10.1115/GT2009-60115

Abstract

View Articletitled, Three-Dimensional Aerodynamic Design Optimization of a Turbine Blade by Using an Adjoint Method

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Topics: Design , Optimization , Turbine blades , Blades , Flow (Dynamics) , Shapes , Turbines , Boundary-value problems , Cascades (Fluid dynamics) , Compression

Investigation of Tip Clearance Modeling Techniques for a Transonic Compressor Rotor

Sean T. Barrows, Ravishankar Balasubramian, Jen-Ping Chen

GT 2009; 665-672https://doi.org/10.1115/GT2009-60136

Abstract

View Articletitled, Investigation of Tip Clearance Modeling Techniques for a Transonic Compressor Rotor

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Topics: Clearances (Engineering) , Compressors , Modeling , Rotors , Computational fluid dynamics , Blades , Boundary layers , Design , Engine design , Engineering simulation

Visualization and Post-Processing of Centrifugal Compressor Computational Fluid Dynamics Flow Fields

Loren Garrison, Nate Cooper

GT 2009; 673-683https://doi.org/10.1115/GT2009-60165

Abstract

View Articletitled, Visualization and Post-Processing of Centrifugal Compressor Computational Fluid Dynamics Flow Fields

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Topics: Compressors , Computational fluid dynamics , Flow (Dynamics) , Visualization , Impellers , Cutting , Turbomachinery

Analysis of the Unsteady Flow in an Aspirated Counter-Rotating Compressor Using the Nonlinear Harmonic Method

Emanuele Guidotti, Mark G. Turner

GT 2009; 685-698https://doi.org/10.1115/GT2009-60285

Abstract

View Articletitled, Analysis of the Unsteady Flow in an Aspirated Counter-Rotating Compressor Using the Nonlinear Harmonic Method

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Topics: Compressors , Unsteady flow , Flow (Dynamics) , Rotors , Boundary-value problems , Computational fluid dynamics , Design , Inlet guide vanes , Simulation , Turbochargers

A Robust Design Optimization of a Mixed-Flow Compressor Impeller

Mert C¸evik, Og˘uz Uzol, I˙lkay Yavrucuk

GT 2009; 699-707https://doi.org/10.1115/GT2009-60298

Abstract

View Articletitled, A Robust Design Optimization of a Mixed-Flow Compressor Impeller

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Topics: Compressor impellers , Design , Flow (Dynamics) , Optimization , Compressors , Engines , Impellers , Thrust , Artificial neural networks , Computer software

Noise and Innovative Noise Reduction

An Absorbing Inlet Buffer Layer for Rotor Wake/Stator Time Domain Computations

Martin Olausson, Lars-Erik Eriksson

GT 2009; 709-718https://doi.org/10.1115/GT2009-59346

Abstract

View Articletitled, An Absorbing Inlet Buffer Layer for Rotor Wake/Stator Time Domain Computations

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Topics: Computation , Polishing equipment , Rotors , Stators , Wakes , Acoustics , Blades , Boundary-value problems , Geometry , Noise (Sound)

Experimental Study of Supersonic Jet Noise Reduction With Microjet Injection

Toshinori Watanabe, Ryuichi Okada, Seiji Uzawa, Takehiro Himeno, Tsutomu Oishi

GT 2009; 719-727https://doi.org/10.1115/GT2009-59436

Abstract

View Articletitled, Experimental Study of Supersonic Jet Noise Reduction With Microjet Injection

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Topics: Jets , Mach number , Noise (Sound) , Noise control , Nozzles , Pressure , Schlieren methods , Shear (Mechanics) , Shock (Mechanics) , Sound pressure

Experimental Study for the Effect of Vaned Diffuser Leading Edge on the Noise Generated From a Centrifugal Fan

Wei Zhang, Wu Qi Gong, Xiao Hua Fan, Guang Xi

GT 2009; 729-736https://doi.org/10.1115/GT2009-59706

Abstract

View Articletitled, Experimental Study for the Effect of Vaned Diffuser Leading Edge on the Noise Generated From a Centrifugal Fan

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Topics: Diffusers , Noise (Sound) , Flow (Dynamics) , Anechoic chambers , Noise control , Sound pressure

Far-Field Radiation of Aerodynamic Sound Sources in Axial Fans Fitted With Passive Noise Control Features

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

GT 2009; 737-747https://doi.org/10.1115/GT2009-59980

Abstract

View Articletitled, Far-Field Radiation of Aerodynamic Sound Sources in Axial Fans Fitted With Passive Noise Control Features

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Topics: Aerodynamic noise , Fans , Noise control , Radiation (Physics) , Noise (Sound) , Blades , Emissions , Flow (Dynamics) , Spectra (Spectroscopy) , Acoustics

Component Interactions

Duct Aerodynamics for Intercooled Aero Gas Turbines: Constraints, Concepts and Design Methodology

A. Duncan Walker, Jonathan F. Carrotte, Andrew M. Rolt

GT 2009; 749-758https://doi.org/10.1115/GT2009-59612

Abstract

View Articletitled, Duct Aerodynamics for Intercooled Aero Gas Turbines: Constraints, Concepts and Design Methodology

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Topics: Aerodynamics , Design methodology , Ducts , Gas turbines , Design , Pressure , Aircraft engines , Compressors , Cooling , Cycles

Pressure Loss Modeling of Non-Symmetric Gas Turbine Exhaust Ducts Using CFD

Steven Farber, Wahid Ghaly

GT 2009; 759-772https://doi.org/10.1115/GT2009-59856

Abstract

View Articletitled, Pressure Loss Modeling of Non-Symmetric Gas Turbine Exhaust Ducts Using CFD

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Topics: Computational fluid dynamics , Ducts , Exhaust systems , Gas turbines , Modeling , Pressure , Design , Flow (Dynamics) , Geometry , Combustion gases

General Interest

A Physical Interpretation of Stagnation Pressure and Enthalpy Changes in Unsteady Flow

H. P. Hodson, T. P. Hynes, E. M. Greitzer, C. S. Tan

GT 2009; 773-784https://doi.org/10.1115/GT2009-59374

Abstract

View Articletitled, A Physical Interpretation of Stagnation Pressure and Enthalpy Changes in Unsteady Flow

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Topics: Enthalpy , Pressure , Unsteady flow , Fluids , Particulate matter , Turbomachinery , Wakes , Blades , Turbines , Compressors

Some Lessons Learned

N. A. Cumpsty

GT 2009; 785-794https://doi.org/10.1115/GT2009-60368

Abstract

View Articletitled, Some Lessons Learned

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Topics: Computational fluid dynamics , Dimensions , Leakage , Screw threads , Thread

Highlights of Roy Smith’s Career at GE

C. C. Koch

GT 2009; 795-800https://doi.org/10.1115/GT2009-60369

Abstract

View Articletitled, Highlights of Roy Smith’s Career at GE

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Topics: Compressors , Design theory , Engines , Gas turbines , International Gas Turbine Institute , Jet engines , Turbochargers

Axial Flow Turbine Aerodynamics

Gas Temperature Profile Attenuation Through a Multistage Axial-Flow Turbine

Boris I. Mamaev, Mikhail M. Petukhovskiy

GT 2009; 801-806https://doi.org/10.1115/GT2009-59033

Abstract

View Articletitled, Gas Temperature Profile Attenuation Through a Multistage Axial-Flow Turbine

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Topics: Axial flow , Temperature profiles , Turbines , Flow (Dynamics) , Airfoils , Aviation , Cooling , Design , Geometry , Rotors

Validating Numerical CFD Simulations With Experimental Data for Turbulence Phenomena in Axial Flow Gas Turbine Diffusers

Farrokh Zarifi-Rad, Hamid Vajihollahi, James O’Brien

GT 2009; 807-819https://doi.org/10.1115/GT2009-59086

Abstract

View Articletitled, Validating Numerical CFD Simulations With Experimental Data for Turbulence Phenomena in Axial Flow Gas Turbine Diffusers

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Topics: Axial flow , Computational fluid dynamics , Diffusers , Engineering simulation , Gas turbines , Simulation , Turbulence , Blades , Computer software , Exhaust systems

An Experimental and Numerical Study of the Effects of Flow Incidence Angles on the Performance of a Stator Blade Cascade of a High Pressure Steam Turbine

Hicham A. Chibli, Sherif A. Abdelfattah, M. T. Schobeiri, Chungrog Kang

GT 2009; 821-830https://doi.org/10.1115/GT2009-59131

Abstract

View Articletitled, An Experimental and Numerical Study of the Effects of Flow Incidence Angles on the Performance of a Stator Blade Cascade of a High Pressure Steam Turbine

PDF

Topics: Blades , Cascades (Fluid dynamics) , Flow (Dynamics) , High pressure (Physics) , Stators , Steam turbines , Computational fluid dynamics , Deflection , Design

The Application of Non-Axisymmetric Endwall Contouring in a Single Stage, Rotating Turbine

Glen Snedden, Dwain Dunn, Grant Ingram, David Gregory-Smith

GT 2009; 831-840https://doi.org/10.1115/GT2009-59169

Abstract

View Articletitled, The Application of Non-Axisymmetric Endwall Contouring in a Single Stage, Rotating Turbine

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Topics: Turbines , Flow (Dynamics) , Computational fluid dynamics , Rotors , Clearances (Engineering) , Design , Engines , Machinery , Pressure gradient , Probes

Turbine Stator Well CFD Studies: Effects of Coolant Supply Geometry on Cavity Sealing Performance

Antonio Andreini, Riccardo Da Soghe, Bruno Facchini

GT 2009; 841-853https://doi.org/10.1115/GT2009-59186

Abstract

View Articletitled, Turbine Stator Well CFD Studies: Effects of Coolant Supply Geometry on Cavity Sealing Performance

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Topics: Cavities , Computational fluid dynamics , Coolants , Geometry , Sealing (Process) , Stators , Turbines , Cooling , Engines , Annulus

Computational Study of the Effects of Shock Waves on Film Cooling Effectiveness

Chad X.-Z. Zhang, Ibrahim G. Hassan

GT 2009; 855-866https://doi.org/10.1115/GT2009-59279

Abstract

View Articletitled, Computational Study of the Effects of Shock Waves on Film Cooling Effectiveness

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Topics: Film cooling , Shock waves , Cooling , Airfoils , Flat plates , Boundary layers , Compressibility , Coolants , Mach number , Separation (Technology)

Numerical and Experimental Analysis of the Flow in an Aggressive Intermediate Turbine Duct

Peter B. V. Johansson, Lars-Uno Axelsson

GT 2009; 867-874https://doi.org/10.1115/GT2009-59299

Abstract

View Articletitled, Numerical and Experimental Analysis of the Flow in an Aggressive Intermediate Turbine Duct

PDF

Topics: Ducts , Experimental analysis , Flow (Dynamics) , Pressure , Turbines

Investigation of CFD Prediction Capabilities for Low Reynolds Turbine Aerodynamics

Bastian Muth, Marco Schwarze, Reinhard Niehuis, Matthias Franke

GT 2009; 875-884https://doi.org/10.1115/GT2009-59306

Abstract

View Articletitled, Investigation of CFD Prediction Capabilities for Low Reynolds Turbine Aerodynamics

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Topics: Aerodynamics , Computational fluid dynamics , Turbines , Cascades (Fluid dynamics) , Pressure , Airfoils , Flow separation , Mach number , Reynolds number , Suction

Controlling Tip Leakage Flow Over a Shrouded Turbine Rotor Using an Air-Curtain

Eric M. Curtis, John D. Denton, John P. Longley, Budimir Rosic

GT 2009; 885-894https://doi.org/10.1115/GT2009-59411

Abstract

View Articletitled, Controlling Tip Leakage Flow Over a Shrouded Turbine Rotor Using an Air-Curtain

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Topics: Leakage flows , Rotors , Turbines , Flow (Dynamics) , Leakage , Blades , Cavities , Clearances (Engineering) , Instrumentation , Jets

Improving Intermediate Pressure Turbine Performance by Using a Non-Orthogonal Stator

Sungho Yoon, John Denton, Eric Curtis, John Longley, Graham Pullan

GT 2009; 895-904https://doi.org/10.1115/GT2009-59415

Abstract

View Articletitled, Improving Intermediate Pressure Turbine Performance by Using a Non-Orthogonal Stator

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Topics: Pressure , Stators , Turbines , Rotors , Flow (Dynamics) , Boundary layers , Design , Diffusion (Physics) , Ducts , Mach number

Numerical Investigation of the Effect of Tip Leakage Flow on an Aggressive S-Shaped Intermediate Turbine Duct

W. Sanz, M. Kelterer, R. Pecnik, A. Marn, E. Go¨ttlich

GT 2009; 905-915https://doi.org/10.1115/GT2009-59535

Abstract

View Articletitled, Numerical Investigation of the Effect of Tip Leakage Flow on an Aggressive S-Shaped Intermediate Turbine Duct

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Topics: Ducts , Leakage flows , Turbines , Flow (Dynamics) , Pressure , Diffusion (Physics) , Rotors , High pressure (Physics) , Aircraft engines , Blades

LP Turbine Laminar Separation With Actuated Transition: DNS, Experiment and Fluidic Oscillator CFD

Tobias Ries, Frederick Mohr, Jenny Baumann, Martin Rose, Ulrich Rist, Irene Raab, Stephan Staudacher

GT 2009; 917-927https://doi.org/10.1115/GT2009-59600

Abstract

View Articletitled, LP Turbine Laminar Separation With Actuated Transition: DNS, Experiment and Fluidic Oscillator CFD

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Topics: Computational fluid dynamics , Separation (Technology) , Turbines , Bubbles , Aircraft engines , Computer simulation , Reynolds number , Simulation , Turbine blades , Weight (Mass)

The Tip Leakage Flow of an Unshrouded High Pressure Turbine Blade With Tip Cooling

Chao Zhou, Howard Hodson

GT 2009; 929-942https://doi.org/10.1115/GT2009-59637

Abstract

View Articletitled, The Tip Leakage Flow of an Unshrouded High Pressure Turbine Blade With Tip Cooling

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Topics: Cavities , Chords (Trusses) , Coolants , Cooling , Flow (Dynamics) , Geometry , High pressure (Physics) , Leakage , Leakage flows , Momentum

Influence of Rim Seal Purge Flow on Performance of an Endwall-Profiled Axial Turbine

P. Schuepbach, R. S. Abhari, M. G. Rose, J. Gier

GT 2009; 943-956https://doi.org/10.1115/GT2009-59653

Abstract

View Articletitled, Influence of Rim Seal Purge Flow on Performance of an Endwall-Profiled Axial Turbine

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Topics: Flow (Dynamics) , Turbines , Rotors , Design , Jets , Pressure , Vortices , Suction , Vorticity , Annulus

Effects of Surface Groove on Separated Flow Transition on a High-Lift Low-Pressure Turbine Profile Under Steady Inflow Conditions

Hualing Luo, Weiyang Qiao, Kaifu Xu

GT 2009; 957-964https://doi.org/10.1115/GT2009-59669

Abstract

View Articletitled, Effects of Surface Groove on Separated Flow Transition on a High-Lift Low-Pressure Turbine Profile Under Steady Inflow Conditions

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Topics: Flow (Dynamics) , Inflow , Pressure , Turbines , Separation (Technology) , Boundary layers , Reynolds number , Suction , Chords (Trusses) , Computation

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

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

GT 2009; 965-977https://doi.org/10.1115/GT2009-59677

Abstract

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

PDF

Topics: Cascades (Fluid dynamics) , Turbines , Airfoils , Flow (Dynamics) , Pressure , Vortices , Blades , Design , High pressure (Physics) , Kinetic energy

Measurement and Computation of Flowfield in Transonic Turbine Nozzle Blading With Blunt Trailing Edges

J. P. Gostelow, A. Mahallati, S. A. Andrews, W. E. Carscallen

GT 2009; 979-991https://doi.org/10.1115/GT2009-59686

Abstract

View Articletitled, Measurement and Computation of Flowfield in Transonic Turbine Nozzle Blading With Blunt Trailing Edges

PDF

Topics: Computation , Nozzles , Turbines , Flow (Dynamics) , Cascades (Fluid dynamics) , Temperature , Mach number , Testing , Blades , Computational fluid dynamics

Validation of Turbine Airfoil Leading Edge Pressure and Skin Friction Modeling and Measurement

Brian M. Holley, Lee S. Langston

GT 2009; 993-1004https://doi.org/10.1115/GT2009-59716

Abstract

View Articletitled, Validation of Turbine Airfoil Leading Edge Pressure and Skin Friction Modeling and Measurement

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Topics: Airfoils , Modeling , Pressure , Skin friction (Fluid dynamics) , Turbines , Cylinders , Cascades (Fluid dynamics) , Computer simulation , Flow (Dynamics) , Pressure gradient

Numerical Simulation of Flow Fields of Variable Geometry Turbine With Spherical Endwalls or Nonuniform Clearance

Guoqiang Yue, Shengqi Yin, Qun Zheng

GT 2009; 1005-1012https://doi.org/10.1115/GT2009-59737

Abstract

View Articletitled, Numerical Simulation of Flow Fields of Variable Geometry Turbine With Spherical Endwalls or Nonuniform Clearance

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Topics: Clearances (Engineering) , Computer simulation , Flow (Dynamics) , Geometry , Turbines , Cylinders , Leakage flows

Detailed Studies on Separated Boundary Layers Over Low-Pressure Turbine Airfoils Under Several High Lift Conditions: Effect of Freesteam Turbulence

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

GT 2009; 1013-1027https://doi.org/10.1115/GT2009-59813

Abstract

View Articletitled, Detailed Studies on Separated Boundary Layers Over Low-Pressure Turbine Airfoils Under Several High Lift Conditions: Effect of Freesteam Turbulence

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Topics: Airfoils , Boundary layers , Pressure , Turbines , Turbulence , Blades , Bubbles , Separation (Technology) , Cascades (Fluid dynamics) , Chords (Trusses)

Aerodynamics of a Covered Trailing Edge Vane: Effects of Blowing Rate, Reynolds Number, and External Turbulence

I. Jaswal, E. Erickson, F. E. Ames

GT 2009; 1029-1038https://doi.org/10.1115/GT2009-59836

Abstract

View Articletitled, Aerodynamics of a Covered Trailing Edge Vane: Effects of Blowing Rate, Reynolds Number, and External Turbulence

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Topics: Aerodynamics , Reynolds number , Turbulence , Pressure , Cooling , Heat transfer , Separation (Technology) , Turning angles , Boundary layers , Cascades (Fluid dynamics)

Influences of Axial Gap Between Blade Rows on Secondary Flows and Aerodynamic Performance in a Turbine Stage

K. Yamada, K. Funazaki, M. Kikuchi, H. Sato

GT 2009; 1039-1049https://doi.org/10.1115/GT2009-59855

Abstract

View Articletitled, Influences of Axial Gap Between Blade Rows on Secondary Flows and Aerodynamic Performance in a Turbine Stage

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Topics: Blades , Flow (Dynamics) , Turbines , Design , Rotors , Stators , Axial flow , Cavities , Disks , Engineering simulation

Aerodynamic Investigation of the Tip Leakage Flow for Blades With Different Tip Squealer Geometries at Transonic Conditions

Toma´sˇ Hofer, Tony Arts

GT 2009; 1051-1061https://doi.org/10.1115/GT2009-59909

Abstract

View Articletitled, Aerodynamic Investigation of the Tip Leakage Flow for Blades With Different Tip Squealer Geometries at Transonic Conditions

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Topics: Blades , Leakage flows , Flow (Dynamics) , Cooling , Coolants , Suction , Heat transfer , Pressure , Turbines , Cascades (Fluid dynamics)

Experimental and Numerical Investigation on the Influence of Trailing Edge Bleeding on the Aerodynamics of a NGV Cascade

Marco Montis, Reinhard Niehuis, Mattia Guidi, Simone Salvadori, Francesco Martelli, Bruno Stephan

GT 2009; 1063-1073https://doi.org/10.1115/GT2009-59910

Abstract

View Articletitled, Experimental and Numerical Investigation on the Influence of Trailing Edge Bleeding on the Aerodynamics of a NGV Cascade

PDF

Topics: Aerodynamics , Cascades (Fluid dynamics) , Nozzle guide vanes , Flow (Dynamics) , Wakes , Coolants , Pressure , Chords (Trusses) , Computer simulation , Mach number

High Pressure Turbine Stage Endwall Profile Optimisation for Performance and Rim Seal Effectiveness

Philippe T. Lott, Nick J. Hills, John W. Chew, Timothy Scanlon, Shahrokh Shahpar

GT 2009; 1075-1087https://doi.org/10.1115/GT2009-59923

Abstract

View Articletitled, High Pressure Turbine Stage Endwall Profile Optimisation for Performance and Rim Seal Effectiveness

PDF

Topics: High pressure (Physics) , Optimization , Turbines , Computational fluid dynamics , Steady state , Coolants , Flow (Dynamics) , Pressure , Compressors , Nozzle guide vanes

The Effect of Rotor Tip Clearance Size Onto the Separated Flow Through a Super-Aggressive S-Shaped Intermediate Turbine Duct Downstream of a Transonic Turbine Stage

A. Marn, E. Go¨ttlich, F. Malzacher, H. P. Pirker

GT 2009; 1089-1103https://doi.org/10.1115/GT2009-59934

Abstract

View Articletitled, The Effect of Rotor Tip Clearance Size Onto the Separated Flow Through a Super-Aggressive S-Shaped Intermediate Turbine Duct Downstream of a Transonic Turbine Stage

PDF

Topics: Clearances (Engineering) , Ducts , Flow (Dynamics) , Rotors , Turbines , Pressure , Separation (Technology) , Aircraft engines , Blades , Diffusion (Physics)

Experimental and Computational Investigations of Low-Pressure Turbine Separation Control Using Vortex Generator Jets

Ralph J. Volino, Olga Kartuzova, Mounir B. Ibrahim

GT 2009; 1105-1117https://doi.org/10.1115/GT2009-59983

Abstract

View Articletitled, Experimental and Computational Investigations of Low-Pressure Turbine Separation Control Using Vortex Generator Jets

PDF

Topics: Generators , Jets , Pressure , Separation (Technology) , Turbines , Vortices , Reynolds number , Airfoils , Boundary layers , Cascades (Fluid dynamics)

Investigation of the Flow Field on a Transonic Turbine Nozzle Guide Vane With Rim Seal Cavity Flow Ejection

M. Pau, G. Paniagua

GT 2009; 1119-1129https://doi.org/10.1115/GT2009-60155

Abstract

View Articletitled, Investigation of the Flow Field on a Transonic Turbine Nozzle Guide Vane With Rim Seal Cavity Flow Ejection

PDF

Topics: Cavity flows , Flow (Dynamics) , Nozzle guide vanes , Turbines , Stators , Shock (Mechanics) , Computational fluid dynamics , Cavities , Rotors , Blades

Assessment of the Flow Quality of a Transonic Turbine Cascade

R. Woodason, A. Asghar, W. D. E. Allan

GT 2009; 1131-1141https://doi.org/10.1115/GT2009-60164

Abstract

View Articletitled, Assessment of the Flow Quality of a Transonic Turbine Cascade

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Topics: Cascades (Fluid dynamics) , Flow (Dynamics) , Turbines , Flow visualization , Pressure , Suction , Blades , Engines , Flow separation , Maintenance

Radial Turbomachinery Aerodynamics

The Effect of Leading Edge Curvature on a Mixed Flow Turbine Performance Under Pulsating Flow Conditions

Li Chen, Weilin Zhuge, Yangjun Zhang, Shuyong Zhang

GT 2009; 1143-1149https://doi.org/10.1115/GT2009-59004

Abstract

View Articletitled, The Effect of Leading Edge Curvature on a Mixed Flow Turbine Performance Under Pulsating Flow Conditions

PDF

Topics: Flow (Dynamics) , Pulsatile flow , Turbines , Design , Engines , Performance characterization , Piston engines , Simulation models , Turbine blades , Turbochargers

High Hub/Tip Ratio Centrifugal Compressors

C. Rodgers, D. Brown

GT 2009; 1151-1161https://doi.org/10.1115/GT2009-59012

Abstract

View Articletitled, High Hub/Tip Ratio Centrifugal Compressors

PDF

Topics: Compressors

A Discussion on Volute Design Method for Radial Inflow Turbines

Hua Chen

GT 2009; 1163-1170https://doi.org/10.1115/GT2009-59110

Abstract

View Articletitled, A Discussion on Volute Design Method for Radial Inflow Turbines

PDF

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

Aerodynamic Design to Increase Pressure Ratio of Centrifugal Compressors for Turbochargers

Hideaki Tamaki, Masaru Unno, Tomoki Kawakubo, Yutaka Hirata

GT 2009; 1171-1184https://doi.org/10.1115/GT2009-59160

Abstract

View Articletitled, Aerodynamic Design to Increase Pressure Ratio of Centrifugal Compressors for Turbochargers

PDF

Topics: Compressors , Design , Pressure , Turbochargers , Impellers , Blades , Diffusers , Mach number , Design methodology , Diesel engines

Meanline Modeling of Radial Inflow Turbine With Variable Area Nozzle

Xuwen Qiu, Mark R. Anderson, Nicholas C. Baines

GT 2009; 1185-1191https://doi.org/10.1115/GT2009-59170

Abstract

View Articletitled, Meanline Modeling of Radial Inflow Turbine With Variable Area Nozzle

PDF

Topics: Inflow , Modeling , Nozzles , Turbines , Clearances (Engineering) , Flow (Dynamics) , Geometry

Optimization of Turbocharger Ported Shroud Compressor Stages

Junfei Yin, Penny Li, Stephane Pees

GT 2009; 1193-1201https://doi.org/10.1115/GT2009-59248

Abstract

View Articletitled, Optimization of Turbocharger Ported Shroud Compressor Stages

PDF

Topics: Compressors , Optimization , Turbochargers , Computational fluid dynamics , Diffusers , Wheels , Design , High pressure (Physics) , Flow (Dynamics) , Pressure

Comparison Between Steady and Unsteady Double-Entry Turbine Performance Using the Quasi-Steady Assumption

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

GT 2009; 1203-1212https://doi.org/10.1115/GT2009-59290

Abstract

View Articletitled, Comparison Between Steady and Unsteady Double-Entry Turbine Performance Using the Quasi-Steady Assumption

PDF

Topics: Turbines , Flow (Dynamics) , Pulsatile flow , Steady state , Cycles , Performance evaluation , Turbochargers

Experimental Investigation of the Flow in the Pipe Diffuser of a Centrifugal Compressor Stage Under Selected Parameter Variations

Uwe Zachau, Reinhard Niehuis, Herwart Hoenen, David C. Wisler

GT 2009; 1213-1223https://doi.org/10.1115/GT2009-59320

Abstract

View Articletitled, Experimental Investigation of the Flow in the Pipe Diffuser of a Centrifugal Compressor Stage Under Selected Parameter Variations

PDF

Topics: Compressors , Diffusers , Flow (Dynamics) , Pipes , Impellers , Pressure , Test facilities , Clearances (Engineering) , Design , Lasers

Passive Control of Rotating Stall in Vaneless Diffuser With Radial Grooves: Detailed Numerical Study

Chuang Gao, Chuangang Gu, Tong Wang, Bo Yang

GT 2009; 1225-1233https://doi.org/10.1115/GT2009-59323

Abstract

View Articletitled, Passive Control of Rotating Stall in Vaneless Diffuser With Radial Grooves: Detailed Numerical Study

PDF

Topics: Passive control , Vaneless diffusers , Flow (Dynamics) , Computational fluid dynamics , Diffusers , Delays , Boundary layers , Design , Geometry , Pressure

A Numerical and Experimental Performance Comparison of an 86 MM Radial and Back Swept Turbine

Liam Barr, Stephen Spence, David Thornhill, Paul Eynon

GT 2009; 1235-1244https://doi.org/10.1115/GT2009-59366

Abstract

View Articletitled, A Numerical and Experimental Performance Comparison of an 86 MM Radial and Back Swept Turbine

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Topics: Turbines , Blades , Design , Rotors , Geometry , Turbochargers , Computational fluid dynamics , Computer simulation , Engineering prototypes , Engines

Role of Tip Leakage in Stall of a Transonic Centrifugal Impeller

Hamid R. Hazby, Liping Xu

GT 2009; 1245-1253https://doi.org/10.1115/GT2009-59372

Abstract

View Articletitled, Role of Tip Leakage in Stall of a Transonic Centrifugal Impeller

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Topics: Impellers , Leakage , Flow (Dynamics) , Blades , Pressure , Boundary layers , Computer simulation , Fluids , Leakage flows , Pressure gradient

Pulse Performance Modeling of a Twin Entry Turbocharger Turbine Under Full and Unequal Admission

Aaron W. Costall, Robert M. McDavid, Ricardo F. Martinez-Botas, Nicholas C. Baines

GT 2009; 1255-1266https://doi.org/10.1115/GT2009-59406

Abstract

View Articletitled, Pulse Performance Modeling of a Twin Entry Turbocharger Turbine Under Full and Unequal Admission

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Topics: Modeling , Turbines , Turbochargers , Flow (Dynamics) , Simulation , Cycles , Diesel engines , Dynamometers , Eddies (Fluid dynamics) , Eddy currents (Electricity)

Analysis and Redesign of the Stationary Components for a Low Flow Coefficient Centrifugal Compressor Stage

Zhiheng Wang, Guang Xi

GT 2009; 1267-1272https://doi.org/10.1115/GT2009-59463

Abstract

View Articletitled, Analysis and Redesign of the Stationary Components for a Low Flow Coefficient Centrifugal Compressor Stage

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Topics: Compressors , Flow (Dynamics) , Computational fluid dynamics , Carbon dioxide , Design , Diffusers , Impellers

Extension of the Stator Vane Upstream Across the 180° Bend for a Multistage Radial Compressor Stage

Christian Aalburg, Alexander Simpson, Jorge Carretero, Tue Nguyen, Vittorio Michelassi

GT 2009; 1273-1282https://doi.org/10.1115/GT2009-59522

Abstract

View Articletitled, Extension of the Stator Vane Upstream Across the 180° Bend for a Multistage Radial Compressor Stage

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Topics: Compressors , Stators , Design , Geometry , Generators , Analytical design , Flow turning , Manufacturing , Numerical analysis , Optimization

Influence of Labyrinth Seal Leakage on Centrifugal Compressor Performance

Bob Mischo, Beat Ribi, Christof Seebass-Linggi, Sebastiano Mauri

GT 2009; 1283-1293https://doi.org/10.1115/GT2009-59524

Abstract

View Articletitled, Influence of Labyrinth Seal Leakage on Centrifugal Compressor Performance

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Topics: Compressors , Leakage , Flow (Dynamics) , Impellers , Leakage flows , Blades , Compressor impellers , Diffusers , Pressure , Separation (Technology)

Experimental Investigations of the Disturbed Inlet-Flow Structure Caused by Mixing Geometries and Its Influence on the Performance of a Turbocharger Centrifugal Compressor

K.-H. Brune, H.-P. Schiffer, R. Christmann, M. Gnewikow

GT 2009; 1295-1304https://doi.org/10.1115/GT2009-59534

Abstract

View Articletitled, Experimental Investigations of the Disturbed Inlet-Flow Structure Caused by Mixing Geometries and Its Influence on the Performance of a Turbocharger Centrifugal Compressor

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Topics: Compressors , Flow (Dynamics) , Turbochargers , Inflow , Exhaust systems , Pressure , Diesel engines , Emissions , Nitrogen oxides , Temperature

Performance Improvement of a Centrifugal Compressor Stage by Increasing Degree of Reaction and Optimizing Blade Loading of a 3D-Impeller

Takanori Shibata, Manabu Yagi, Hideo Nishida, Hiromi Kobayashi, Masanori Tanaka

GT 2009; 1305-1315https://doi.org/10.1115/GT2009-59588

Abstract

View Articletitled, Performance Improvement of a Centrifugal Compressor Stage by Increasing Degree of Reaction and Optimizing Blade Loading of a 3D-Impeller

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Topics: Blades , Compressors , Impellers , Diffusion (Physics) , Computational fluid dynamics , Design , Pressure , Surges , Flow (Dynamics) , Mach number

Numerical Computation of the Pulsatile Flow in a Turbocharger With Realistic Inflow Conditions From an Exhaust Manifold

Fredrik Hellstrom, Laszlo Fuchs

GT 2009; 1317-1329https://doi.org/10.1115/GT2009-59619

Abstract

View Articletitled, Numerical Computation of the Pulsatile Flow in a Turbocharger With Realistic Inflow Conditions From an Exhaust Manifold

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Topics: Computation , Exhaust manifolds , Inflow , Pulsatile flow , Turbochargers , Turbines , Flow (Dynamics) , Wheels , Automobiles , Axial flow

Aerodynamic Design and Experimental Validation of Centrifugal Compressor Impellers With Small Flow Rate

Guang Xi, Zhiheng Wang, Xinwei Li, Shangjin Wang

GT 2009; 1331-1338https://doi.org/10.1115/GT2009-59785

Abstract

View Articletitled, Aerodynamic Design and Experimental Validation of Centrifugal Compressor Impellers With Small Flow Rate

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Topics: Compressor impellers , Design , Flow (Dynamics) , Impellers , Compressors , Carbon dioxide , Cycles , Design methodology , Surges , Vortices

Experimental and Numerical Investigation of an Aero-Engine Centrifugal Compressor

Jason A. Bourgeois, Robert J. Martinuzzi, Douglas Roberts, Eric Savory, Chao Zhang

GT 2009; 1339-1348https://doi.org/10.1115/GT2009-59808

Abstract

View Articletitled, Experimental and Numerical Investigation of an Aero-Engine Centrifugal Compressor

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Topics: Aircraft engines , Compressors , Laser Doppler anemometry , Modeling , Turbulence , Simulation results , Flow (Dynamics) , Boundary layers , Design , Diffusers

Flow Field Structures of the Impeller Backside Cavity and Its Influences on the Centrifugal Compressor

Zhigang Sun, Chunqing Tan, Dongyang Zhang

GT 2009; 1349-1360https://doi.org/10.1115/GT2009-59879

Abstract

View Articletitled, Flow Field Structures of the Impeller Backside Cavity and Its Influences on the Centrifugal Compressor

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Topics: Cavities , Compressors , Flow (Dynamics) , Impellers , Leakage flows , Pressure , Thrust

The Development of a Deviation Model for Radial and Mixed-Flow Turbines for Use in Throughflow Calculations

Graham Cox, Alex Roberts, Michael Casey

GT 2009; 1361-1374https://doi.org/10.1115/GT2009-59921

Abstract

View Articletitled, The Development of a Deviation Model for Radial and Mixed-Flow Turbines for Use in Throughflow Calculations

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Topics: Flow (Dynamics) , Turbines , Design , Computational fluid dynamics , Automotive engines , Blades , Clearances (Engineering) , Engines , Geometry , High temperature

Design and Off-Design Flow Fields of a Transonic Centrifugal Compressor Impeller

Seiichi Ibaraki, Kunio Sumida, Toru Suita

GT 2009; 1375-1384https://doi.org/10.1115/GT2009-59986

Abstract

View Articletitled, Design and Off-Design Flow Fields of a Transonic Centrifugal Compressor Impeller

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Topics: Compressor impellers , Design , Flow (Dynamics) , Compressors , Shock waves , Impellers , Leakage , Turbochargers , Vortices , Computation

A Numerical and Experimental Study of the Rotor Inlet Flow Fields of Radial Turbines Using Vaned and Vaneless Stators

Alister Simpson, Stephen W. T. Spence, Juliana Early

GT 2009; 1385-1395https://doi.org/10.1115/GT2009-59998

Abstract

View Articletitled, A Numerical and Experimental Study of the Rotor Inlet Flow Fields of Radial Turbines Using Vaned and Vaneless Stators

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Topics: Flow (Dynamics) , Rotors , Stators , Turbines , Computer simulation , Pressure , Pressure measurement , Wakes

The Influence of Shroud Curvature and Other Related Factors on Impeller Performance Characteristics

James M. Sorokes, Jason A. Kopko, Paul R. Geise, Angelina L. Hinklein

GT 2009; 1397-1406https://doi.org/10.1115/GT2009-60109

Abstract

View Articletitled, The Influence of Shroud Curvature and Other Related Factors on Impeller Performance Characteristics

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Topics: Impellers , Performance characterization , Computational fluid dynamics , Finite element analysis

Application of Flow Control in a Novel Sector Test Rig

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

GT 2009; 1407-1417https://doi.org/10.1115/GT2009-60126

Abstract

View Articletitled, Application of Flow Control in a Novel Sector Test Rig

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Topics: Flow control , Compressors , Airfoils , Blades , Computational fluid dynamics , Design , Diffusion (Physics) , Engineering simulation , Flow (Dynamics) , Inlet guide vanes

Radial Forces in a Centrifugal Compressor Equipped With Vaned Diffusers

Ahti Jaatinen, Jari L. H. Backman, Teemu Turunen-Saaresti

GT 2009; 1419-1425https://doi.org/10.1115/GT2009-60130

Abstract

View Articletitled, Radial Forces in a Centrifugal Compressor Equipped With Vaned Diffusers

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Topics: Compressors , Diffusers , Impellers , Vaneless diffusers , Flow (Dynamics) , Magnetic bearings , Pressure , Design , Force measurement , Manufacturing

Experimental Study of Pinch in Vaneless Diffuser of Centrifugal Compressor

Teemu Turunen-Saaresti, Aki-Pekka Gro¨nman, Ahti Jaatinen

GT 2009; 1427-1438https://doi.org/10.1115/GT2009-60162

Abstract

View Articletitled, Experimental Study of Pinch in Vaneless Diffuser of Centrifugal Compressor

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Topics: Compressors , Pinch effect , Vaneless diffusers , Flow (Dynamics) , Diffusers , Pressure , Design , Rotors , Probes , Geometry

Steam Turbines

Water Droplets Dispersion and Optimization of Water Removal Suction Slot Locations on Stationary Blades in Last-Stage of a 600 MW Steam Turbine

Xinjun Wang, Pengfei Su, Luke Chou, Panlong Guan, Chunguo Li, Hongyu Zhou

GT 2009; 1439-1446https://doi.org/10.1115/GT2009-59490

Abstract

View Articletitled, Water Droplets Dispersion and Optimization of Water Removal Suction Slot Locations on Stationary Blades in Last-Stage of a 600 MW Steam Turbine

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Topics: Blades , Drops , Optimization , Steam turbines , Suction , Water

On the Effects of Unsteadiness on the Condensation Process in Low-Pressure Steam Turbines

Keramat Fakhari

GT 2009; 1447-1461https://doi.org/10.1115/GT2009-60078

Abstract

View Articletitled, On the Effects of Unsteadiness on the Condensation Process in Low-Pressure Steam Turbines

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Topics: Condensation , Pressure , Steam turbines , Blades , Flow (Dynamics) , Cascades (Fluid dynamics) , Drops , Fluctuations (Physics) , Heat , Image segmentation

A Redesign Strategy to Improve the Efficiency of a 17-Stage Steam Turbine

Filippo Rubechini, Andrea Schneider, Andrea Arnone, Stefano Cecchi, Francesco Malavasi

GT 2009; 1463-1470https://doi.org/10.1115/GT2009-60083

Abstract

View Articletitled, A Redesign Strategy to Improve the Efficiency of a 17-Stage Steam Turbine

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Topics: Steam turbines , Rotors , Stators , Turbines , Approximation , Boundary-value problems , Geometry , Optimization , Reynolds-averaged Navier–Stokes equations

Unsteady Flows in Turbomachinery

Unsteady Flow in a Turbocharger Centrifugal Compressor: 3D-CFD Simulation, Impeller Blade Vibration and Vaned Diffuser-Volute Interaction

Hans-Peter Dickmann, Thomas Secall Wimmel, Jaroslaw Szwedowicz, Janpeter Ku¨hnel, Uwe Essig

GT 2009; 1471-1485https://doi.org/10.1115/GT2009-59046

Abstract

View Articletitled, Unsteady Flow in a Turbocharger Centrifugal Compressor: 3D-CFD Simulation, Impeller Blade Vibration and Vaned Diffuser-Volute Interaction

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Topics: Blades , Compressors , Computational fluid dynamics , Diffusers , Impellers , Simulation , Turbochargers , Unsteady flow , Vibration , Resonance

Multistage Compressor and Turbine Modeling for the Prediction of the Maximum Turbine Speed Resulting From Shaft Breakage

M. Haake, R. Fiola, S. Staudacher

GT 2009; 1487-1496https://doi.org/10.1115/GT2009-59049

Abstract

View Articletitled, Multistage Compressor and Turbine Modeling for the Prediction of the Maximum Turbine Speed Resulting From Shaft Breakage

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Topics: Compressors , Modeling , Turbines , High pressure (Physics) , Engines , Failure , Clearances (Engineering) , Friction , Blades , Combustion chambers

On the Phenomenon of Pressure Pulses Reflecting Between Blades of Adjacent Blade Rows of Turbo-Machines

Jerzy A. Owczarek

GT 2009; 1497-1508https://doi.org/10.1115/GT2009-59055

Abstract

View Articletitled, On the Phenomenon of Pressure Pulses Reflecting Between Blades of Adjacent Blade Rows of Turbo-Machines

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Topics: Blades , Compressors , Pressure , Reflection , Turbines , Turbomachinery , Waves

Investigation of Wake Transport in a Turbine Blade Channel and Its Effect on the Boundary Layer Development

Edyta Bijak-Bartosik, Witold Elsner

GT 2009; 1509-1517https://doi.org/10.1115/GT2009-59123

Abstract

View Articletitled, Investigation of Wake Transport in a Turbine Blade Channel and Its Effect on the Boundary Layer Development

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Topics: Blades , Boundary layers , Convection , Turbine blades , Wakes

Experimental Investigation of Non-Axisymmetrical Flow Control in a Low Speed Axial Compressor

Huabing Jiang, Yajun Lu, Wei Yuan, Qiushi Li

GT 2009; 1519-1531https://doi.org/10.1115/GT2009-59137

Abstract

View Articletitled, Experimental Investigation of Non-Axisymmetrical Flow Control in a Low Speed Axial Compressor

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Topics: Compressors , Flow control , Excitation , Flow (Dynamics) , Pressure , Dynamic response

Experimental Investigation of the Influence of Inlet Distortion on the Stall Inception in a Low Speed Axial Compressor

Huabing Jiang, Yajun Lu, Wei Yuan, Qiushi Li

GT 2009; 1533-1542https://doi.org/10.1115/GT2009-59139

Abstract

View Articletitled, Experimental Investigation of the Influence of Inlet Distortion on the Stall Inception in a Low Speed Axial Compressor

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Topics: Compressors , Stall inception , Flow (Dynamics) , Damping , Rotors , Blades , Dynamic response , Flow separation , Aircraft , Particulate matter

Unsteady Vortices and Blade Loading in a High-Pressure Turbine

Dongil Chang, Stavros Tavoularis

GT 2009; 1543-1552https://doi.org/10.1115/GT2009-59189

Abstract

View Articletitled, Unsteady Vortices and Blade Loading in a High-Pressure Turbine

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Topics: Blades , High pressure (Physics) , Turbines , Vortices , Pressure , Rotors , Entropy , Fluctuations (Physics) , Leakage , Rotation

Compressor Leading Edge Spikes: A New Performance Criterion

Martin N. Goodhand, Robert J. Miller

GT 2009; 1553-1562https://doi.org/10.1115/GT2009-59205

Abstract

View Articletitled, Compressor Leading Edge Spikes: A New Performance Criterion

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Topics: Compressors , Blades , Design , Diffusion (Physics) , Boundary layers , Erosion , Geometry , Pressure , Stators , Suction

Designing a High Fidelity Wake Simulator for Research Using Linear Cascades

Jonathon Pluim, Curtis Memory, Jeffrey Bons, Jen-Ping Chen

GT 2009; 1563-1574https://doi.org/10.1115/GT2009-59276

Abstract

View Articletitled, Designing a High Fidelity Wake Simulator for Research Using Linear Cascades

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Topics: Design , Wakes , Shapes , Turbine blades , Blades , Pressure , Reynolds number , Turbines , Airfoils , Cascades (Fluid dynamics)

Analysis of Rotor-Stator-Interaction and Blade-to-Blade Measurements in a Two Stage Axial Flow Compressor

Marco Ernst, Armin Michel, Peter Jeschke

GT 2009; 1575-1585https://doi.org/10.1115/GT2009-59371

Abstract

View Articletitled, Analysis of Rotor-Stator-Interaction and Blade-to-Blade Measurements in a Two Stage Axial Flow Compressor

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Topics: Axial flow , Blades , Flow (Dynamics) , Indexing (Machining) , Rotors , Stators

Validation of an Efficient Unstructured Time-Domain Rotor/Stator Interaction Method

Manuel A. Burgos, Jesus Contreras, Roque Corral

GT 2009; 1587-1599https://doi.org/10.1115/GT2009-59385

Abstract

View Articletitled, Validation of an Efficient Unstructured Time-Domain Rotor/Stator Interaction Method

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Topics: Rotors , Stators , Boundary-value problems

Application of a Nonlinear Harmonic Method to the Simulation of Clocking Effects

S. Vilmin, E. Lorrain, Ch. Hirsch

GT 2009; 1601-1609https://doi.org/10.1115/GT2009-59475

Abstract

View Articletitled, Application of a Nonlinear Harmonic Method to the Simulation of Clocking Effects

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Topics: Simulation , Stators , Flow (Dynamics) , Rotors , Blades , Turbines , Unsteady flow , High pressure (Physics) , Phase shift , Turbomachinery

Unsteady and Three-Dimensional Flow Phenomena in a Transonic Centrifugal Compressor Impeller at Rotating Stall

Kenichiro Iwakiri, Masato Furukawa, Seiichi Ibaraki, Isao Tomita

GT 2009; 1611-1622https://doi.org/10.1115/GT2009-59516

Abstract

View Articletitled, Unsteady and Three-Dimensional Flow Phenomena in a Transonic Centrifugal Compressor Impeller at Rotating Stall

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Topics: Compressor impellers , Flow (Dynamics) , Compressors , Blades , Impellers , Separation (Technology) , Vortices , Eddies (Fluid dynamics) , Internal flow , Leakage

Investigation of Turbine Shroud Distortions on the Aerodynamics of a One and One-Half Stage High-Pressure Turbine

Eric A. Crosh, Charles W. Haldeman, Michael G. Dunn, D. Graham Holmes, Brian E. Mitchell

GT 2009; 1623-1637https://doi.org/10.1115/GT2009-59562

Abstract

View Articletitled, Investigation of Turbine Shroud Distortions on the Aerodynamics of a One and One-Half Stage High-Pressure Turbine

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Topics: Aerodynamics , High pressure (Physics) , Turbines , Blades , Pressure , Turbochargers , Computational fluid dynamics , Design , Signals , Airfoils

Influence of Inlet Velocity Ratio on the Outlet Flow Uniformity of a Fan-Shaped Film Cooling Hole

James S. Porter, Alan D. Henderson, Gregory J. Walker

GT 2009; 1639-1650https://doi.org/10.1115/GT2009-59581

Abstract

View Articletitled, Influence of Inlet Velocity Ratio on the Outlet Flow Uniformity of a Fan-Shaped Film Cooling Hole

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Topics: Film cooling , Flow (Dynamics) , Coolants , Cooling , Fluids , Diffusers , Failure , Internal flow , Separation (Technology) , Turbulence

Unsteady Flow Effects in a High-Speed Multistage Axial Compressor

Mai Yamagami, Hidekazu Kodama, Dai Kato, Naoki Tsuchiya, Yasuo Horiguchi, Junichi Kazawa

GT 2009; 1651-1664https://doi.org/10.1115/GT2009-59583

Abstract

View Articletitled, Unsteady Flow Effects in a High-Speed Multistage Axial Compressor

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Topics: Compressors , Unsteady flow , Simulation , Blades , Design , Pressure , Wakes

Numerical Investigation of Unsteady Blade Row Interactions With Leakage Flow in Steam Turbines

Keramat Fakhari, Thomas Hofbauer, Anton Weber

GT 2009; 1665-1684https://doi.org/10.1115/GT2009-59613

Abstract

View Articletitled, Numerical Investigation of Unsteady Blade Row Interactions With Leakage Flow in Steam Turbines

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Topics: Blades , Leakage flows , Steam turbines , Flow (Dynamics) , Engineering simulation , Simulation , Cavity flows , Computational fluid dynamics , Computer-aided engineering , Modeling

Generalised Single-Passage Multi-Bladerow Method for Turbomachinery Forced Response

Sanjay Mata, Luca Di Mare, Imregun Mehmet, Jeffrey Green

GT 2009; 1685-1692https://doi.org/10.1115/GT2009-59624

Abstract

View Articletitled, Generalised Single-Passage Multi-Bladerow Method for Turbomachinery Forced Response

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Topics: Turbomachinery , Annulus , Boundary-value problems , Computation , Aerodynamics , Blades , Computational methods , Cylinders , Rotors , Stators

The Thermodynamics of Wake Blade Interaction in Axial Flow Turbines: Combined Experimental and Computational Study

Martin Rose, Peter Schu¨pbach, Michel Mansour

GT 2009; 1693-1705https://doi.org/10.1115/GT2009-59655

Abstract

View Articletitled, The Thermodynamics of Wake Blade Interaction in Axial Flow Turbines: Combined Experimental and Computational Study

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Topics: Axial flow , Blades , Thermodynamics , Turbines , Wakes , Fluids , Rotors , Entropy , Mach number , Engineering simulation

The Influence of Rotor-Stator Spacing on the Loss in One-Stage Transonic Compressor

Wan’ai Li, Yutao Sun, Yu-Xin Ren, Song Fu, Aspi R. Wadia

GT 2009; 1707-1715https://doi.org/10.1115/GT2009-59762

Abstract

View Articletitled, The Influence of Rotor-Stator Spacing on the Loss in One-Stage Transonic Compressor

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Topics: Compressors , Rotors , Stators , Unsteady flow , NASA

Film Cooling Effectiveness Measurements With Periodic Unsteady Inflow on Highly Loaded Blades With Main Flow Separation

Reinaldo A. Gomes, Reinhard Niehuis

GT 2009; 1717-1731https://doi.org/10.1115/GT2009-59791

Abstract

View Articletitled, Film Cooling Effectiveness Measurements With Periodic Unsteady Inflow on Highly Loaded Blades With Main Flow Separation

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Topics: Blades , Film cooling , Flow separation , Inflow , Cascades (Fluid dynamics) , Flow (Dynamics) , Temperature , Coolants , Engines , Liquid crystals

CFD Predicted Discharge Coefficients of a Single Cylindrical Hole With Compressible External Cross-Flow

L. Guo, Y. Y. Yan, J. D. Maltson

GT 2009; 1733-1740https://doi.org/10.1115/GT2009-59821

Abstract

View Articletitled, CFD Predicted Discharge Coefficients of a Single Cylindrical Hole With Compressible External Cross-Flow

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Topics: Computational fluid dynamics , Cross-flow , Discharge coefficient , Pressure , Flow (Dynamics) , Coolants , Mach number , Film cooling , Shear stress , Shock waves