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Proceedings Papers

Proceedings Volume Cover
ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition
June 6–10, 2011
Vancouver, British Columbia, Canada
Conference Sponsors:
  • International Gas Turbine Institute
ISBN:
978-0-7918-5467-9
Volume 7: Turbomachinery, Parts A, B, and C

Turbomachinery

Axial Fan and Compressor Aerodynamics

The Cost of Flow Control in a Compressor
Simon W. Evans, Howard P. Hodson
GT 2011; 1-12https://doi.org/10.1115/GT2011-45059
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Topics: Compressors , Flow control , Suction , Cycles , Blades , Flow (Dynamics) , Boundary layers , Cascades (Fluid dynamics) , Delays , Separation (Technology)
Investigation of the Tip Clearance Flow in a Compressor Cascade Using a Novel Laser Measurement Technique With High Temporal Resolution
Andreas Fischer, Lars Bu¨ttner, Ju¨rgen Czarske, Marcel Gottschall, Ronald Mailach, Konrad Vogeler
GT 2011; 13-23https://doi.org/10.1115/GT2011-45176
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Topics: Cascades (Fluid dynamics) , Clearances (Engineering) , Compressors , Flow (Dynamics) , Lasers , Leakage flows , Resolution (Optics) , Turbulence
Numerical and Experimental Investigations of a Compressor Cascade Flow With Secondary Air Removal
Sascha Po¨nick, Dragan Kozˇulovic´, Rolf Radespiel, Bernd Becker, Volker Gu¨mmer
GT 2011; 25-37https://doi.org/10.1115/GT2011-45202
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Topics: Compressors , Flow (Dynamics) , High pressure (Physics) , Stators , Airfoils , Blades , Cascades (Fluid dynamics) , Computer simulation , Design , Engineering simulation
Experimental Investigations of Corner Stall in a Linear Compressor Cascade
Wei Ma, Xavier Ottavy, Lipeng Lu, Francis Leboeuf, Feng Gao
GT 2011; 39-51https://doi.org/10.1115/GT2011-45236
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Topics: Cascades (Fluid dynamics) , Compressors , Corners (Structural elements) , Flow (Dynamics) , Blades , Computational fluid dynamics , Pressure , Separation (Technology) , Suction , Boundary layers
Investigation of Unsteady Compressor Flow Structure With Tip Injection Using Particle Image Velocimetry
Roland Matzgeller, Melanie Voges, Michael Schroll
GT 2011; 53-63https://doi.org/10.1115/GT2011-45281
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Topics: Compressors , Flow (Dynamics) , Particulate matter , Rotors , Fluids , Inflow , Inspection , Jets , Leakage , Pressure
Investigation of Passage Flow Features in a Transonic Compressor Rotor With Casing Treatments
M. W. Mu¨ller, H.-P. Schiffer, Melanie Voges, Chunill Hah
GT 2011; 65-75https://doi.org/10.1115/GT2011-45364
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Topics: Compressors , Flow (Dynamics) , Rotors , Leakage , Stability , Vortices , Blades , Design , Particulate matter , Pressure measurement
Three Dimensional Design and Optimization of a Transonic Rotor in Axial Flow Compressors
Hidetaka Okui, Tom Verstraete, R. A. Van den Braembussche, Zuheyr Alsalihi
GT 2011; 77-88https://doi.org/10.1115/GT2011-45425
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Topics: Axial flow , Compressors , Design , Optimization , Rotors , Artificial neural networks , Blades , Chords (Trusses) , Evolutionary algorithms , Flow (Dynamics)
Design of Two Counter-Rotating Fan Types and CFD Investigation of Their Aerodynamic Characteristics
Xiao-He Yang, Peng Shan
GT 2011; 89-99https://doi.org/10.1115/GT2011-45426
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Topics: Computational fluid dynamics , Design , Rotors , Engines , Pressure , Shock (Mechanics) , Fans , Military systems , Flow (Dynamics) , Commercial air transport
A Quasi-One-Dimensional CFD Model for Multistage Compressors
W. Du, O. Le´onard
GT 2011; 101-112https://doi.org/10.1115/GT2011-45497
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Topics: Compressors , Computational fluid dynamics , Simulation , Surges
Effects of Using Hydrogen-Rich Syngas in Industrial Gas Turbines While Maintaining Fuel Flexibility on Compressor Design
Pascal Nucara, Abdulnaser Sayma
GT 2011; 113-123https://doi.org/10.1115/GT2011-45589
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Topics: Compressors , Design , Fuels , Hydrogen , Industrial gases , Syngas , Turbines , Flow (Dynamics) , Blades , Natural gas
Theory and Application of Axisymmetric Endwall Contouring for Compressors
Georg Kro¨ger, Christian Voß, Eberhard Nicke, Christian Cornelius
GT 2011; 125-137https://doi.org/10.1115/GT2011-45624
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Topics: Compressors , Clearances (Engineering) , Design , Blades , Vortices , Gas turbines , High pressure (Physics) , Engines , Leakage flows , Optimization
Integrated OGV Design for an Aggressive S-Shaped Compressor Transition Duct
A. D. Walker, A. G. Barker, J. F. Carrotte, J. J. Bolger, M. J. Green
GT 2011; 139-149https://doi.org/10.1115/GT2011-45627
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Topics: Compressors , Design , Ducts , Pressure , Flow (Dynamics) , Geometry , Guide vanes , Rotors , Gas turbines , Probes
Numerical Design and Experimental Evaluation of an Aggressive S-Shaped Compressor Transition Duct With Bleed
A. D. Walker, A. G. Barker, J. F. Carrotte
GT 2011; 151-161https://doi.org/10.1115/GT2011-45628
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Topics: Compressors , Design , Ducts , Flow (Dynamics) , Engines , Pressure , Pressure gradient , Architecture , Boundary layers , Cooling
Analysis of Unsteadiness on Casing Treatment Mechanisms in an Axial Compressor
G. Legras, N. Gourdain, I. Tre´binjac, X. Ottavy
GT 2011; 163-175https://doi.org/10.1115/GT2011-45806
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Topics: Compressors , Flow (Dynamics) , Stability , Navier-Stokes equations , Stators , High pressure (Physics) , Momentum , Numerical analysis , Optimization , Rotors
A New Approach for Compressor Endwall Contouring
Alexander Hergt, Robert Meyer, Karsten Liesner, Eberhard Nicke
GT 2011; 177-186https://doi.org/10.1115/GT2011-45858
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Topics: Compressors , Cascades (Fluid dynamics) , Boundary layers , Design , Flow (Dynamics) , Cross-flow , Blades , Corners (Structural elements) , Flow simulation , Mach number
Aerodynamic Performance of a Coolant Flow Off-Take Downstream of an OGV
C. A’Barrow, J. F. Carrotte, A. D. Walker, A. M. Rolt
GT 2011; 187-199https://doi.org/10.1115/GT2011-45888
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Topics: Coolants , Flow (Dynamics) , Diffusion (Physics) , Pressure , Aircraft engines , Blades , Compression , Cooling , Design , Gas turbines
Numerical Investigation of a Single Circumferential Groove Casing Treatment on Three Different Compressor Rotors
F. Heinichen, V. Gu¨mmer, H.-P. Schiffer
GT 2011; 201-211https://doi.org/10.1115/GT2011-45905
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Topics: Compressors , Rotors , Clearances (Engineering) , Shock (Mechanics) , Vortices , Blades , Flow (Dynamics) , Geometry
Design of a Highly Loaded Transonic Two-Stage Fan Using Swept and Bowed Blading
Hailiang Jin, Donghai Jin, Fang Zhu, Ke Wan, Xingmin Gui
GT 2011; 213-224https://doi.org/10.1115/GT2011-45988
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Topics: Design , Corners (Structural elements) , Pressure , Rotors , Stators , Engineering design processes , Momentum , Shock (Mechanics)
Self-Regulating Casing Treatment for Axial Compressor Stability Enhancement
Stephanie Weichert, Ivor Day, Chris Freeman
GT 2011; 225-237https://doi.org/10.1115/GT2011-46042
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Topics: Compressors , Stability , Design , Flow (Dynamics) , High pressure (Physics) , Rotors , Blades , Clearances (Engineering) , Gates (Closures) , Pressure
Design and Aerodynamic Analysis of a Highly Loaded Helium Compressor
Tingfeng Ke, Qun Zheng
GT 2011; 239-250https://doi.org/10.1115/GT2011-46044
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Topics: Compressors , Design , Helium , Separation (Technology)
Numerical Research of the Ram-Rotor With Different Geometric Parameters
Ling Yang, Jingjun Zhong, Ji-ang Han
GT 2011; 251-262https://doi.org/10.1115/GT2011-46051
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Topics: Rotors , Compression , Flow (Dynamics) , Shock waves , Pressure , Aircraft , Computer software , Computers , Design methodology , Mach number
The Influence of Suction-Side Winglet on Tip Leakage Flow in Compressor Cascade
Jingjun Zhong, Shaobing Han, Peng Sun
GT 2011; 263-273https://doi.org/10.1115/GT2011-46054
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Topics: Cascades (Fluid dynamics) , Compressors , Leakage flows , Suction , Flow (Dynamics) , Leakage , Blades , Pressure , Clearances (Engineering) , Corners (Structural elements)
The Effect of the Casing Movement Relative to the Blades on the Tip Leakage Loss in Axial Flow Compressors
Guillaume Pallot, Dai Kato, Hidekazu Kodama, Kazunari Matsuda, Hideo Taniguchi, Hiromasa Kato, Ken-ichi Funazaki
GT 2011; 275-284https://doi.org/10.1115/GT2011-46182
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Topics: Axial flow , Blades , Compressors , Leakage , Cascades (Fluid dynamics) , Clearances (Engineering) , Entropy , Computation , Flow (Dynamics) , Rotors
Highly Loaded LPC Blade and Non Axisymmetric Hub Profiling Optimization for Enhanced Efficiency and Stability
I. Lepot, T. Mengistu, S. Hiernaux, O. De Vriendt
GT 2011; 285-295https://doi.org/10.1115/GT2011-46261
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Topics: Blades , Optimization , Stability , Rotors , Design , Engineering simulation , Engines , Fuels , Reynolds-averaged Navier–Stokes equations , Simulation
The Influence of Shrouded Stator Cavity Flows on the Aerodynamic Performance of a High-Speed Multistage Axial-Flow Compressor
Dai Kato, Mai Yamagami, Naoki Tsuchiya, Hidekazu Kodama
GT 2011; 297-307https://doi.org/10.1115/GT2011-46300
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Topics: Axial flow , Cavity flows , Compressors , Stators , Cavities , Flow (Dynamics) , Rotors , Blades , Engineering simulation , Heating
Application of a Multistage Casing Treatment in a High Speed Axial Compressor Test Rig
T. Kroeckel, S. J. Hiller, P. Jeschke
GT 2011; 309-318https://doi.org/10.1115/GT2011-46315
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Topics: Compressors , Flow (Dynamics) , Aerodynamics , Aircraft engines , Rotors , High pressure (Physics) , Pressure , Surges
Computational and Experimental Analysis of an Industrial Gas Turbine Compressor
Alexander Wiedermann, Dirk Frank, Ulrich Orth, Markus Beukenberg
GT 2011; 319-329https://doi.org/10.1115/GT2011-46336
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Topics: Compressors , Experimental analysis , Industrial gases , Turbines , Flow (Dynamics) , Blades , Instrumentation , Pressure , Rotors , Stators
Tip Clearance Investigation of a Ducted Fan Used in VTOL UAVS: Part 1—Baseline Experiments and Computational Validation
Ali Akturk, Cengiz Camci
GT 2011; 331-344https://doi.org/10.1115/GT2011-46356
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Topics: Clearances (Engineering) , Unmanned aerial vehicles , Fans , Reynolds-averaged Navier–Stokes equations , Engineering simulation , Flow (Dynamics) , Leakage flows , Rotors , Simulation , Blades
Tip Clearance Investigation of a Ducted Fan Used in VTOL UAVS: Part 2—Novel Treatments via Computational Design and Their Experimental Verification
Ali Akturk, Cengiz Camci
GT 2011; 345-357https://doi.org/10.1115/GT2011-46359
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Topics: Clearances (Engineering) , Design , Unmanned aerial vehicles , Leakage , Rotors , Wake turbulence , Blades , Flow (Dynamics) , Leakage flows , Pressure
Wall Shear Stress Measurements on a Highly Loaded Compressor Cascade
Vincent Zander, Christoph Dobriloff, Mathias Lumpe, Wolfgang Nitsche
GT 2011; 359-368https://doi.org/10.1115/GT2011-46364
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Topics: Cascades (Fluid dynamics) , Compressors , Shear stress , Flow (Dynamics) , Blades , Probes , Sensors , Bubbles , Engineering simulation , Flat plates
Performance Improvement of Turbomachinery Using Plasma Actuators
Maria Grazia De Giorgi, Stefania Traficante, Antonio Ficarella
GT 2011; 369-380https://doi.org/10.1115/GT2011-46413
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Topics: Actuators , Plasmas (Ionized gases) , Turbomachinery , Flow (Dynamics) , Boundary layers , Computer simulation , Airfoils , Blades , Compressors , Computational fluid dynamics
Numerical Investigation of a Highly Loaded Axial Compressor Stage With Inlet Distortions
Andreas Lesser, Jens Iseler, Reinhard Niehuis
GT 2011; 381-391https://doi.org/10.1115/GT2011-46457
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Topics: Compressors , Inflow , Flow (Dynamics) , Pressure , Annulus , Boundary-value problems , Computer simulation , Flow simulation , Propulsion , Steel
Active Flow Control Concepts on a Highly Loaded Subsonic Compressor Cascade: Re´sume´ of Experimental and Numerical Results
Christoph Gmelin, Vincent Zander, Martin Hecklau, Frank Thiele, Wolfgang Nitsche, Andre´ Huppertz, Marius Swoboda
GT 2011; 393-404https://doi.org/10.1115/GT2011-46468
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Topics: Cascades (Fluid dynamics) , Compressors , Flow control , Jets , Flow (Dynamics) , Blades , Pressure , Computer simulation , Design , Navier-Stokes equations
Investigations of Secondary Flow Suction in a High Speed Compressor Cascade
Christoph Gmelin, Frank Thiele, Karsten Liesner, Robert Meyer
GT 2011; 405-415https://doi.org/10.1115/GT2011-46479
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Topics: Cascades (Fluid dynamics) , Compressors , Flow (Dynamics) , Suction , Corners (Structural elements) , Separation (Technology) , Bubbles , Chords (Trusses) , Design , Engineering simulation
A Preliminary Numerical CFD Analysis of Transonic Compressor Rotors When Subjected to Inlet Swirl Distortion
Javier Castaneda, Ahad Mehdi, Domenico di Cugno, Vassilios Pachidis
GT 2011; 417-429https://doi.org/10.1115/GT2011-46560
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Topics: Compressors , Computational fluid dynamics , Rotors , Vortices , Engines , Turbomachinery , Clearances (Engineering) , Cycles , Engineering simulation , Flow (Dynamics)
Compressor Blade Modelling Under Highly Negative Incedence
Pavlos K. Zachos, Cornelia Ruelke, Vassilios Pachidis, Riti Singh
GT 2011; 431-441https://doi.org/10.1115/GT2011-46621
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Topics: Blades , Compressors , Modeling , Design , Engines , Aircraft engines , Combustion chambers , Computational fluid dynamics , Cross section (Physics) , Databases
Optimal Application of Riblets on Compressor Blades and Their Contamination Behavior
Christoph Lietmeyer, Karsten Oehlert, Joerg R. Seume
GT 2011; 443-455https://doi.org/10.1115/GT2011-46855
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Topics: Blades , Compressors , Contamination , Geometry , Particulate matter , Suction , Boundary layers , Lasers , Agglomeration (Materials) , Boundary layer turbulence

Axial Turbine Aerodynamics

Aerodynamic Measurements on a Low Pressure Turbine Cascade With Different Levels of Distributed Roughness
Marco Montis, Reinhard Niehuis, Andreas Fiala
GT 2011; 457-467https://doi.org/10.1115/GT2011-45015
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Topics: Cascades (Fluid dynamics) , Pressure , Surface roughness , Turbines , Airfoils , Boundary layers , Flow (Dynamics) , Probes , Reynolds number , Separation (Technology)
Parametric Study of Fluidic Oscillators for Use in Active Boundary Layer Control
Marion Mack, Reinhard Niehuis, Andreas Fiala
GT 2011; 469-479https://doi.org/10.1115/GT2011-45073
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Topics: Boundary layers , Pressure , Geometry , Actuators , Blades , Cascades (Fluid dynamics) , Excitation , Feedback , Flow (Dynamics) , Fluctuations (Physics)
Studies on Two-Dimensional Contouring of High-Lift Turbine Airfoil Suction Surface as Separation-Control Device: Separation Suppression Under Steady-State Flow Conditions
Ken-ichi Funazaki, Nozomi Tanaka, Takahiro Shiba, Haruyuki Tanimitsu, Masaaki Hamabe
GT 2011; 481-491https://doi.org/10.1115/GT2011-45156
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Topics: Airfoils , Flow (Dynamics) , Separation (Technology) , Steady state , Suction , Turbines , Bubbles , Boundary layers , Cascades (Fluid dynamics) , Pressure
Research of Design Method of Variable Area Nozzle Turbine for Variable Cycle Engine
Zhao Yin, Xiang-jun Fang, Si-yong Liu, Ping Wang, Zhi-gang Liu
GT 2011; 493-501https://doi.org/10.1115/GT2011-45166
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Topics: Cycles , Design methodology , Engines , Nozzles , Turbines , Pressure , Design , Blades , Computational fluid dynamics , Computer simulation
Research of a New Design Method of Variable Area Nozzle Turbine for VCE: Harmonic Design Method
Xiang-jun Fang, Zhao Yin, Si-yong Liu, Ping Wang, Zhi-gang Liu
GT 2011; 503-509https://doi.org/10.1115/GT2011-45167
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Topics: Design methodology , Nozzles , Turbines , Flow (Dynamics) , Computer simulation , Cycles , Design , Engines
Effect of Turbine Airfoil Shape on Aerodynamic Losses for Turbine Airfoils Operating Under Transonic Conditions
Santosh Abraham, Kapil Panchal, Srinath V. Ekkad, Wing Ng, Barry J. Brown, Anthony Malandra
GT 2011; 511-521https://doi.org/10.1115/GT2011-45188
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Topics: Airfoils , Shapes , Turbines , Mach number , Flow (Dynamics) , Chords (Trusses) , Engines , Pressure , Turning angles , Cascades (Fluid dynamics)
Investigation of Effect of End Wall Contouring Methods on a Transonic Turbine Blade Passage
Kapil Panchal, Santosh Abraham, Srinath V. Ekkad, Wing Ng, Barry J. Brown, Anthony Malandra
GT 2011; 523-534https://doi.org/10.1115/GT2011-45192
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Topics: Turbine blades , Design , Mach number , Blades , Turbines , Geometry , Topology , Optimization , Computer simulation , Computer software
Effect of the Axial Spacing Between Vanes and Blades on the Performance of a Transonic Axial Turbine
Dongil Chang, Stavros Tavoularis
GT 2011; 535-546https://doi.org/10.1115/GT2011-45222
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Topics: Blades , Turbines , Flow (Dynamics) , Mach number , Pressure , Fluctuations (Physics) , Rotors , Stators , Wakes , Chords (Trusses)
Blade Loading and its Application in the Mean-Line Design of Low Pressure Turbines
John D. Coull, Howard P. Hodson
GT 2011; 547-558https://doi.org/10.1115/GT2011-45238
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Topics: Blades , Design , Pressure , Turbines , Flow (Dynamics) , Reynolds number , Aircraft engines , Axial flow , Flow turning , Gages
Inverse Fin Arrangement in a Low Pressure Turbine to Improve the Interaction Between Shroud Leakage Flows and Main Flow
Inga Mahle, Roman Schmierer
GT 2011; 559-568https://doi.org/10.1115/GT2011-45250
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Topics: Flow (Dynamics) , Leakage flows , Pressure , Turbines , Cavities , Fins , Honeycomb structures , Gas turbines , Blades , Coating processes
Design and Test of a Highly Loaded Single-Stage High Pressure Turbine
T. Wolf, E. Janke, R. Benton, F. Kost, F. Haselbach, S. Gegg
GT 2011; 569-579https://doi.org/10.1115/GT2011-45342
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Topics: Design , High pressure (Physics) , Turbines , Engines , Aircraft engines , Blades , Blocks (Building materials) , Cascades (Fluid dynamics) , Computer simulation , Governments
Experimental Comparison of DBD Plasma Acuators for Low Reynolds Number Separation Control
Christopher Marks, Rolf Sondergaard, Mitch Wolff, Rich Anthony
GT 2011; 581-594https://doi.org/10.1115/GT2011-45397
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Topics: Plasmas (Ionized gases) , Reynolds number , Separation (Technology) , Actuators , Jets , Airfoils , Propulsion , Air Force , Boundary layers , Control systems
Roughness Modeling for Turbomachinery
Andreas Fiala, Edmund Ku¨geler
GT 2011; 595-607https://doi.org/10.1115/GT2011-45424
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Topics: Modeling , Surface roughness , Turbomachinery , Boundary layer turbulence , Cascades (Fluid dynamics) , Computation , Flow (Dynamics) , Resolution (Optics) , Reynolds number , Shapes
Effect of Turbine Tip Leakage Flows on Exhaust Diffuser Performance
Mohan Babu, Dinesh Bhatia, Ram Krishna Shukla, A. M. Pradeep, Bhaskar Roy
GT 2011; 609-618https://doi.org/10.1115/GT2011-45457
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Topics: Diffusers , Exhaust systems , Leakage flows , Turbines , Flow (Dynamics) , Pressure , Computer simulation , Diffusion (Physics) , Pressure gradient , Reynolds number
Influences of Inlet Swirl Distributions on an Inter-Turbine Duct: Part I—Casing Swirl Variation
Shuzhen Hu, Yanfeng Zhang, Xue Feng Zhang, Edward Vlasic
GT 2011; 619-630https://doi.org/10.1115/GT2011-45554
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Topics: Ducts , Turbines , Boundary layers , Vortices , Flow (Dynamics) , Pressure gradient , Separation (Technology) , Momentum , Wakes , Blades
Influences of Inlet Swirl Distributions on an Inter-Turbine Duct: Part II—Hub Swirl Variation
Yanfeng Zhang, Shuzhen Hu, Xue Feng Zhang, Edward Vlasic
GT 2011; 631-641https://doi.org/10.1115/GT2011-45555
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Topics: Ducts , Turbines , Vortices , Flow (Dynamics) , Boundary layers , Pressure , Separation (Technology) , Blades , Engines , Gas turbines
LP Turbine Secondary Vortices: Reynolds Lapse
Matthias Kuerner, Georg A. Reichstein, Daniel Schrack, Martin G. Rose, Stephan Staudacher, Jochen Gier, Karl Engel
GT 2011; 643-651https://doi.org/10.1115/GT2011-45557
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Topics: Turbines , Vortices , Reynolds number , Cavities , Computer simulation , Simulation , Aircraft engines , Aircraft propulsion , Cavity flows , Computation
Anisotropic Eddy Viscosity in the Secondary Flow of a Low-Speed Linear Turbine Cascade
G. D. MacIsaac, S. A. Sjolander
GT 2011; 653-665https://doi.org/10.1115/GT2011-45578
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Topics: Anisotropy , Cascades (Fluid dynamics) , Eddies (Fluid dynamics) , Flow (Dynamics) , Turbines , Viscosity , Turbulence , Approximation , Probes , Chords (Trusses)
A Numerical Investigation of Moment Coefficient and Flow Structure in a Rotor-Stator Cavity With Rotor Mounted Bolts
Elham Roshani Moghaddam, Daniel Coren, Christopher Long, Abdulnaser Sayma
GT 2011; 667-679https://doi.org/10.1115/GT2011-45588
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Topics: Cavities , Flow (Dynamics) , Rotors , Stators , Computation , Computational fluid dynamics , Design , Disks , Gas turbines , Pressure
Impact of Severe Temperature Distortion on Turbine Efficiency
Paul F. Beard, Andy Smith, Thomas Povey
GT 2011; 681-694https://doi.org/10.1115/GT2011-45647
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Topics: Temperature , Turbines , Flow (Dynamics) , Engines , Computational fluid dynamics , Design , Errors , Measurement systems , Nozzles , Temperature profiles
The Effect of the Operating Conditions of the Last Turbine Stage on the Performance of an Axial Exhaust Diffuser
Victor Opilat, Joerg R. Seume
GT 2011; 695-704https://doi.org/10.1115/GT2011-45668
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Topics: Diffusers , Exhaust systems , Turbines , Flow (Dynamics) , Leakage flows , Pressure , Combined cycle power stations , Design , Endoscopic devices , Gas turbines
Experiment Study of Simulated Effect of Rotor Stator Interaction: Effect of Axial Spacing and Rotor Blade Film Cooling Air Injection Ratio
Murari Sridhar, B. V. S. S. S. Prasad, N. Sitaram
GT 2011; 705-714https://doi.org/10.1115/GT2011-45681
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Topics: Blades , Film cooling , Rotors , Stators , Flow (Dynamics) , Cascades (Fluid dynamics) , Wakes , Chords (Trusses) , Fluids , Temperature distribution
Investigation of the Influence of Different Rim Seal Geometries in a Low-Pressure Turbine
P. Schuler, K. Dullenkopf, H.-J. Bauer
GT 2011; 715-729https://doi.org/10.1115/GT2011-45682
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Topics: Pressure , Turbines , Flow (Dynamics) , Sealing (Process) , Design , Blades , Cascades (Fluid dynamics) , Cavities , Gas flow , Boundary layers
The Influence of Blade Sweep Technique in Linear Cascade Configuration
Rosario Spataro, Gabriele D’Ippolito, Vincenzo Dossena
GT 2011; 731-740https://doi.org/10.1115/GT2011-45728
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Topics: Blades , Cascades (Fluid dynamics) , Flow (Dynamics) , Pressure , Computational fluid dynamics , Engineering design processes , Optimization , Shapes , Turbines , Vorticity
The Influence of Inlet Contraction on Vane Aerodynamic Losses and Secondary Flows With Variable Turbulence and Reynolds Number
N. H. K. Chowdhury, P. K. Dey, F. E. Ames
GT 2011; 741-750https://doi.org/10.1115/GT2011-45737
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Topics: Flow (Dynamics) , Reynolds number , Turbulence , Cascades (Fluid dynamics) , Chords (Trusses) , Combustion chambers , Pressure , Probes , Turning angles , Wind tunnels
Tip Leakage Losses in Subsonic and Transonic Blade-Rows
Andrew P. S. Wheeler, Theodosios Korakianitis, Shashimal Banneheke
GT 2011; 751-759https://doi.org/10.1115/GT2011-45798
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Topics: Blades , Leakage , Flow (Dynamics) , Mach number , Cavities , Computational fluid dynamics , High pressure (Physics) , Leakage flows , Pressure , Turbine blades
Time Resolved Measurements in the Durham Cascade
Felix Fo¨rster, David Sims-Williams, Grant Ingram, Robert Dominy
GT 2011; 761-773https://doi.org/10.1115/GT2011-45838
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Topics: Cascades (Fluid dynamics) , Probes , Chords (Trusses) , Deformation , Flow (Dynamics) , Kinetic energy , Turbulence , Vortices , Wire , Blades
Aerodynamic Investigation of the Performance of a Two Stage Axial Turbine at Design and Off-Design Conditions
Sherif A. Abdelfattah, Hicham A. Chibli, M. T. Schobeiri
GT 2011; 775-785https://doi.org/10.1115/GT2011-45909
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Topics: Design , Turbines , Flow (Dynamics) , Blades , Boundary layers , Engines , High pressure (Physics) , Boundary-value problems , Computer simulation , Energy dissipation
Endwall Contouring Using Continuous Diffusion: A Breakthrough Method and its Application to a Three-Stage High Pressure Turbine
M. T. Schobeiri, K. Lu
GT 2011; 787-797https://doi.org/10.1115/GT2011-45931
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Topics: Diffusion (Physics) , High pressure (Physics) , Turbines , Flow (Dynamics) , Design , Blades , Pressure , Vortices , Drag (Fluid dynamics) , Engineers
Viscous Controlled Vortex Design of a 1.5-Stage Axial Subsonic Test Turbine
Qingfeng Deng, Qun Zheng, Chunlei Liu, Hai Zhang, Mingcong Luo
GT 2011; 799-813https://doi.org/10.1115/GT2011-46113
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Topics: Design , Design methodology , Turbines , Vortices
Numerical Analysis of Three-Dimensional Turbine Airfoil Designs
Thorsten Poehler, Yavuz Guendogdu, Peter Jeschke, Jochen Gier
GT 2011; 815-822https://doi.org/10.1115/GT2011-46204
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Topics: Airfoils , Numerical analysis , Turbines , Experimental design , Kinetic energy , Shapes , Turbulence , Bubbles , Computational fluid dynamics , Design
Analysis and Evaluation of the Impact of Different Blade Loadings on a 2-Stage Turbine With Shrouded Blades
Dieter Bohn, Stephan Schwab, Michael Sell
GT 2011; 823-830https://doi.org/10.1115/GT2011-46209
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Topics: Blades , Turbines , Flow (Dynamics) , Leakage , Probes , Vortices , Cavities , Energy consumption , Gas turbines , Kinetic energy
Experimental and Numerical Investigation of an Aerodynamically Loaded Guide Vane in a Turbine Duct
Martin Johansson, Valery Chernoray, Linda Stro¨m, Jonas Larsson, Hans Abrahamsson
GT 2011; 831-840https://doi.org/10.1115/GT2011-46221
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Topics: Ducts , Guide vanes , Turbines , Flow (Dynamics) , Computational fluid dynamics , Pressure , Design , Flow separation , Flow turning , Numerical analysis
Effects of Co-Rotating Longitudinal Vortices on Turbulent Structures in the Leg of the Horseshoe Vortex
Shinji Honami, Masaharu Andoh, Satoshi Tanabe, Masahiro Motosuke
GT 2011; 841-850https://doi.org/10.1115/GT2011-46246
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Topics: Turbulence , Vortices , Blades , Flow (Dynamics) , Generators , Dynamics (Mechanics) , Kinetic energy , Stepper motors , Stress , Turbine blades
A Low Pressure Turbine With Profiled End Walls and Purge Flow Operating With a Pressure Side Bubble
P. Jenny, R. S. Abhari, M. G. Rose, M. Brettschneider, J. Gier
GT 2011; 851-863https://doi.org/10.1115/GT2011-46309
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Topics: Bubbles , Flow (Dynamics) , Pressure , Turbines , Rotors , Blades , Computation , Engineering simulation , Engines , Entropy
An Investigation of Reynolds Lapse Rate for Highly Loaded Low Pressure Turbine Airfoils With Forward and Aft Loading
M. Eric Lyall, Paul I. King, Rolf Sondergaard, John P. Clark, Mark W. McQuilling
GT 2011; 865-876https://doi.org/10.1115/GT2011-46328
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Topics: Airfoils , Pressure , Turbines , Turbulence , Reynolds number , Eddies (Fluid dynamics) , Sensors , Viscosity , Anisotropy , Chords (Trusses)
Influence of Surface Roughness on the Profile and End-Wall Losses in Low Pressure Turbines
Rau´l Va´zquez, Diego Torre, Fernando Partida, Leyre Arman˜anzas, Antonio Antoranz
GT 2011; 877-886https://doi.org/10.1115/GT2011-46371
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Topics: Pressure , Surface roughness , Turbines , Stators , Airfoils , Flow (Dynamics) , Polishing , Reynolds number , Blades , Finishes
Comparison of Various Supersonic Turbine Tip Designs to Minimize Aerodynamic Loss and Tip Heating
Vikram Shyam, Ali Ameri
GT 2011; 887-895https://doi.org/10.1115/GT2011-46390
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Topics: Heating , Turbines , Flow (Dynamics) , Heat flux , Clearances (Engineering) , Shock (Mechanics) , Engineering simulation , Rotors , Simulation , Computational fluid dynamics
Impact of a Collector Box on the Pressure Recovery of an Exhaust Diffuser System
Bryan C. Bernier, Mark Ricklick, J. S. Kapat
GT 2011; 897-910https://doi.org/10.1115/GT2011-46455
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Topics: Diffusers , Exhaust systems , Pressure , Flow (Dynamics) , Geometry , Turbulence , Boundary-value problems , Computational fluid dynamics , Computer software , Gates (Closures)
Application of Endwall Contouring to Transonic Turbine Cascades: Experimental Measurements at Design Conditions
F. Taremi, S. A. Sjolander, T. J. Praisner
GT 2011; 911-922https://doi.org/10.1115/GT2011-46511
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Topics: Design , Turbines , Flow (Dynamics) , Blades , Flow visualization , Kinetic energy , Pressure , Boundary layers , Cascades (Fluid dynamics) , Chords (Trusses)
Dual-Solution and Choked Flow Treatment in a Streamline Curvature Throughflow Solver
Prashant Tiwari, Alex Stein, Yu-Liang Lin
GT 2011; 923-933https://doi.org/10.1115/GT2011-46545
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Topics: Flow (Dynamics) , Transonic flow
Further Investigation of the Influence of Real-World Blade Profile Variation on the Aerodynamic Performance of Transonic Nozzle Guide Vanes
J. Ilott, A. Asghar, W. D. E. Allan, R. Woodason
GT 2011; 935-946https://doi.org/10.1115/GT2011-46558
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Topics: Airfoils , Blades , Cascades (Fluid dynamics) , Computational fluid dynamics , Design , Flow visualization , Laminates , Maintenance , Nozzle guide vanes , Pressure
Turbine Hub and Shroud Sealing Flow Loss Mechanisms
Metodi Blagoev Zlatinov, Choon Sooi Tan, Matthew Montgomery, Tito Islam, Melissa Seco-Soley
GT 2011; 947-959https://doi.org/10.1115/GT2011-46718
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Topics: Flow (Dynamics) , Sealing (Process) , Turbines , Clearances (Engineering) , Computation , Design , Entropy , Shear (Mechanics) , Swirling flow , Tradeoffs

Noise and Innovative Noise Reduction

Sound Deadening on Fans
Sascha Karstadt, Berthold Matyschok, Peter F. Pelz
GT 2011; 961-971https://doi.org/10.1115/GT2011-45004
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Topics: Fans , Noise (Sound) , Acoustics , Clearances (Engineering) , Ducts , Blades , Construction , Design , Flow (Dynamics) , Manufacturing
Contra-Rotating Open Rotor Operation for Improved Aerodynamics and Noise at Takeoff
Alexios Zachariadis, Cesare A. Hall, Anthony B. Parry
GT 2011; 973-983https://doi.org/10.1115/GT2011-45205
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Topics: Aerodynamics , Noise (Sound) , Rotors , Blades , Computational fluid dynamics , Thrust , Acoustics , Aviation , Carbon dioxide , Emissions
Numerical and Experimental Investigation of Flow Behaviour and Aerodynamic Noise in Axial Flow Fan of Air-Conditioner
Xifeng Zhao, Jinju Sun, Zhi Zhang
GT 2011; 985-994https://doi.org/10.1115/GT2011-45280
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Topics: Aerodynamic noise , Air conditioners , Axial flow , Flow (Dynamics) , Noise (Sound) , Acoustics , Blades , Computational fluid dynamics , Dipoles (Electromagnetism) , Flow simulation
Drag Management in High Bypass Turbofan Nozzles for Quiet Approach Applications
P. Shah, A. Robinson, A. Price, Z. Spakovszky
GT 2011; 995-1009https://doi.org/10.1115/GT2011-45577
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Topics: Drag (Fluid dynamics) , Nozzles , Turbofans , Noise (Sound) , Engines , Computational fluid dynamics , Acoustics , Aircraft , Engineering simulation , Outflow
Shock Propagation and MPT Noise From a Transonic Rotor in Non-Uniform Flow
J. J. Defoe, Z. S. Spakovszky
GT 2011; 1011-1022https://doi.org/10.1115/GT2011-45645
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Topics: Flow (Dynamics) , Noise (Sound) , Rotors , Shock (Mechanics) , Acoustics , Blades , Computation , Ducts , Inflow , NASA
Hot-Acoustic-Testrig (HAT): A Unique Facility for Thermoacoustic Research
Karsten Knobloch, Claus Lahiri, Lars Enghardt, Friedrich Bake, Dieter Peitsch
GT 2011; 1023-1032https://doi.org/10.1115/GT2011-45705
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Topics: Acoustics , Flow (Dynamics) , Boundary-value problems , Damping , Gas turbines , Instrumentation , Pressure , Temperature , Test facilities
Validation of a 3D Linearized Method for Turbomachinery Tone Noise Analysis
Lorenzo Pinelli, Francesco Poli, Michele Marconcini, Andrea Arnone, Ennio Spano, Davide Torzo
GT 2011; 1033-1042https://doi.org/10.1115/GT2011-45886
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Topics: Noise (Sound) , Turbomachinery , Acoustics , Turbines , Pressure , Accounting , Blades , Boundary-value problems , Deflection , Emissions
Scattering of Plane Waves by a Constriction
E. Alenius, M. A˚bom, L. Fuchs
GT 2011; 1043-1052https://doi.org/10.1115/GT2011-46247
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Topics: Electromagnetic scattering , Radiation scattering , Scattering (Physics) , Waves , Acoustics , Flow (Dynamics) , Large eddy simulation , Noise (Sound) , Reflection , Vorticity
Large Eddy Simulation of a Hot, High Speed Coflowing Jet
Simon Eastwood, Paul G. Tucker, Hao Xia
GT 2011; 1053-1066https://doi.org/10.1115/GT2011-46837
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Topics: Large eddy simulation , Acoustics , Flow (Dynamics) , Computation , Eddies (Fluid dynamics) , Engines , Modeling , Nozzles , Ray tracing , Reynolds-averaged Navier–Stokes equations

Design Methods and CFD Modeling for Turbomachinery

Adjoint-Based Flow Sensitivity Analyis Using Arbitrary Control Surfaces
Christian Frey, Graham Ashcroft, Jan Backhaus, Edmund Ku¨geler, Jens Wellner
GT 2011; 1067-1076https://doi.org/10.1115/GT2011-45041
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Topics: Flow (Dynamics) , Blades , Pressure
Efficient Gradient-Based Algorithms for the Construction of Pareto Fronts
Sriram Shankaran, Brian Barr
GT 2011; 1077-1090https://doi.org/10.1115/GT2011-45069
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Topics: Algorithms , Construction , Computational fluid dynamics , Design , Finite element analysis , Simulation , Evolutionary algorithms , Structural analysis , Turbine blades
The Role of Streamwise Vorticity in Flows Over Turbomachine Blade Suction Surfaces
J. P. Gostelow, W. A. McMullan, G. J. Walker, A. Mahallati
GT 2011; 1091-1102https://doi.org/10.1115/GT2011-45075
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Topics: Blades , Flow (Dynamics) , Suction , Turbomachinery , Vorticity , Resolution (Optics) , Reynolds number , Separation (Technology) , Vortices , Aircraft
Novel Approach for Loss and Flow-Turning Prediction Using Optimized Surrogate Models in Two-Dimensional Compressor Design
Andreas Schmitz, Marcel Aulich, Eberhard Nicke
GT 2011; 1103-1114https://doi.org/10.1115/GT2011-45086
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Topics: Compressors , Design , Flow turning , Airfoils , Databases , Flow (Dynamics) , Inflow , Mach number , Artificial neural networks , Blades
Development of an Edge-Based Harmonic Balance Method for Turbomachinery Flows
Roque Corral, Javier Crespo
GT 2011; 1115-1127https://doi.org/10.1115/GT2011-45170
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Topics: Flow (Dynamics) , Turbomachinery , Airfoils , Modeling , Navier-Stokes equations
Optimization of a Transonic Axial Compressor Considering Interaction of Blade and Casing Treatment to Improve Operating Stability
Jin-Hyuk Kim, Kwang-Jin Choi, Kwang-Yong Kim
GT 2011; 1129-1138https://doi.org/10.1115/GT2011-45404
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Topics: Blades , Compressors , Optimization , Stability , Design , Approximation , Clearances (Engineering) , Evolutionary algorithms , Experimental design , Flow (Dynamics)
Development of an Optimization Design Method for Turbomachinery by Incorporating the Cooperative Coevolution Genetic Algorithm and Adaptive Approximate Model
Peng Song, Jinju Sun, Ke Wang, Zhilong He
GT 2011; 1139-1153https://doi.org/10.1115/GT2011-45411
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Topics: Design methodology , Genetic algorithms , Optimization , Turbomachinery , Design , Turbines , Computational fluid dynamics , Optimization algorithms , Algorithms , Approximation
A Novel Quasi-3D Design Method for Centrifugal Compressor Impeller on the Blade-to-Blade Plane
Farzad Poursadegh, Ali Hajilouy-Benisi, Mahdi Nili-Ahmadabadi
GT 2011; 1155-1162https://doi.org/10.1115/GT2011-45451
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Topics: Blades , Compressor impellers , Design methodology , Pressure , Impellers , Compressors , Design , Flow (Dynamics) , Algorithms , Gas turbines
Design Optimisation of Casing Grooves Using the Zipper Layer Meshing Method
Greg Carnie, Yibin Wang, Ning Qin, Shahrokh Shahpar
GT 2011; 1163-1174https://doi.org/10.1115/GT2011-45483
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Topics: Design , Optimization , Rotors , Response surface methodology , Algorithms , Computer software , Cycles , Experimental design , Flow (Dynamics) , Gas turbines
CFD Aerodynamic Performance Validation of a Two-Stage High Pressure Turbine
Murari Sridhar, Sathish Sunnam, Shraman Goswami, Jong S. Liu
GT 2011; 1175-1184https://doi.org/10.1115/GT2011-45569
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Topics: Computational fluid dynamics , High pressure (Physics) , Turbines , Design , Flow (Dynamics) , Pressure , Blades , Cooling , Cycles , Engineering design processes
High-Dimensional Constrained Multiobjective Optimization of a Fan Stage
Marcel Aulich, Ulrich Siller
GT 2011; 1185-1196https://doi.org/10.1115/GT2011-45618
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Topics: Artificial neural networks , Chain , Computational fluid dynamics , Databases , Degrees of freedom , Density , Design , Evolutionary algorithms , Finite element methods , Finite element model
Transition Modelling for Vortex Generating Jets on Low-Pressure Turbine Profiles
Florian Herbst, Dragan Kozˇulovic´, Joerg R. Seume
GT 2011; 1197-1208https://doi.org/10.1115/GT2011-45621
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Topics: Jets , Modeling , Pressure , Turbines , Vortices , Reynolds number , Design , Separation (Technology) , Cascades (Fluid dynamics) , Engineering simulation
A Validation of Commerical Flow Solver Performance on Hybridised Octree Meshes
W. P. Kellar, S. A. Harvey, W. N. Dawes
GT 2011; 1209-1217https://doi.org/10.1115/GT2011-45713
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Topics: Flow (Dynamics) , Octrees , Engineering simulation , Simulation , Turbomachinery
Aerodynamic Shape Design Optimization for Turbomachinery Cascade Based on Discrete Adjoint Method
Chaolei Zhang, Zhenping Feng
GT 2011; 1219-1228https://doi.org/10.1115/GT2011-45805
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Topics: Cascades (Fluid dynamics) , Optimization , Shape design , Turbomachinery , Design , Flow (Dynamics) , Computational fluid dynamics , Algorithms , Boundary-value problems , Construction
Inverse Problem for Isentropic Mach-Number on Blade Wall in Aerodynamic Shape Design of Turbomachinery Cascades by Using Adjoint Method
Haitao Li, Liming Song, Pengfei Zhang, Zhenping Feng
GT 2011; 1229-1240https://doi.org/10.1115/GT2011-45808
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Topics: Blades , Inverse problems , Mach number , Shape design , Turbomachinery , Flow (Dynamics) , Boundary-value problems , Cascades (Fluid dynamics) , Design , Finite volume methods
A Comparison of Advanced Numerical Techniques to Model Transient Flow in Turbomachinery Blade Rows
Stuart Connell, Mark Braaten, Laith Zori, Robin Steed, Brad Hutchinson, Graham Cox
GT 2011; 1241-1250https://doi.org/10.1115/GT2011-45820
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Topics: Blades , Turbomachinery , Unsteady flow , Flow (Dynamics) , Boundary-value problems , Computation , Turbines , Pressure , Aircraft engines , Boundary layers
On a Numerical Method for the Simulation of Steady Jet Array Interaction With Rotating Components
Valery Kostege, Sergey Chernyshev, Vladimir Vassiliev
GT 2011; 1251-1260https://doi.org/10.1115/GT2011-45832
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Topics: Numerical analysis , Simulation , Compressors , Computation , Computer simulation , Computers , Design , Jets , Shock (Mechanics) , Turbines
Investigation of Calculated Turbulence Parameters for Use in Hybrid Broadband Fan Noise Calculations
Jeremy Maunus, Sheryl M. Grace, Douglas L. Sondak, Victor Yakhot
GT 2011; 1261-1275https://doi.org/10.1115/GT2011-45906
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Topics: Noise (Sound) , Turbulence , Simulation , Computational fluid dynamics , Kinetic energy , Reynolds-averaged Navier–Stokes equations , Energy dissipation , Engines , Exhaust systems , Turbofans
Comprehensive Application of a First Principles Based Methodology for Design of Axial Compressor Configurations
Vishwas Iyengar, Lakshmi N. Sankar
GT 2011; 1277-1287https://doi.org/10.1115/GT2011-45936
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Topics: Compressors , Design , Blades , Rotors , Stators , Compression , NASA , Pressure , Shock (Mechanics)
The Whole Annulus Computations of Particulate Flow and Erosion in an Axial Fan
Hong Yang, Joan Boulanger
GT 2011; 1289-1299https://doi.org/10.1115/GT2011-45992
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Topics: Annulus , Computation , Erosion , Flow (Dynamics) , Particulate matter , Sands , Blades , Rotors , Stators , Algorithms
Turbomachinery Thermal Analysis Using Coupled Two- and Three Dimensional Models and Reduced Order Fluid Models
Jesus Contreras, Roque Corral, Guillermo Pastor
GT 2011; 1301-1313https://doi.org/10.1115/GT2011-45998
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Topics: Fluids , Thermal analysis , Three-dimensional models , Turbomachinery , Temperature , Ducts , Flux (Metallurgy) , Heat , Turbines
Application of an Inverse Design Method to Meet a Target Pressure in Axial-Flow Compressors
Ali Madadi, Mohammad Jafar Kermani, Mahdi Nili-Ahmadabadi
GT 2011; 1315-1322https://doi.org/10.1115/GT2011-46091
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Topics: Axial flow , Compressors , Design methodology , Pressure , Blades , Geometry , Design , Algorithms , Flow (Dynamics) , Algebra
Multi-Row Inverse Method Based on the Adjoint Optimization
Jinguang Yang, Xiuquan Huang, Hu Wu
GT 2011; 1323-1333https://doi.org/10.1115/GT2011-46130
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Topics: Boundary-value problems , Design , Optimization , Shapes , Stators , Turbines
Optimization of Endwall Contours of a Turbine Blade Row Using an Adjoint Method
Jiaqi Luo, Ivan McBean, Feng Liu
GT 2011; 1335-1350https://doi.org/10.1115/GT2011-46163
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Topics: Optimization , Turbine blades , Design , Flow (Dynamics) , Blades , Flow turning , Density , Entropy , Turbulence
Genetic Algorithm for Gas Turbine Blading Design
Cleopatra F. Cuciumita, Valeriu A. Vilag, Valentin Silivestru, Ionut Porumbel
GT 2011; 1351-1361https://doi.org/10.1115/GT2011-46171
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Topics: Design , Gas turbines , Genetic algorithms , Turbines , Geometry , Optimization , Algorithms , Computational fluid dynamics , Engineering prototypes , Engineering simulation
Steady State Versus Time-Accurate CFD in an Automated Airfoil Section Optimization of a Counter Rotating Fan Stage
Georgios Goinis, Stefan Stollenwerk, Eberhard Nicke, Edmund Ku¨geler
GT 2011; 1363-1373https://doi.org/10.1115/GT2011-46190
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Topics: Airfoils , Computational fluid dynamics , Optimization , Steady state , Reynolds-averaged Navier–Stokes equations , Blades , Compressors , Simulation , Design , Flow (Dynamics)
Implementation of an Edge-Based Navier-Stokes Solver for Unstructured Grids in Graphics Processing Units
Fernando Gisbert, Roque Corral, Guillermo Pastor
GT 2011; 1375-1385https://doi.org/10.1115/GT2011-46224
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Topics: Graphics processing units , Computer programming , Maintenance , Reynolds-averaged Navier–Stokes equations , Turbomachinery
Aerodynamic Redesigning of an Industrial Gas Turbine
Filippo Rubechini, Andrea Schneider, Andrea Arnone, Federico Dacca`, Claudio Canelli, Pietro Garibaldi
GT 2011; 1387-1394https://doi.org/10.1115/GT2011-46258
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Topics: Computation , Degrees of freedom , Design , Flow (Dynamics) , Gas turbines , Geometry , Industrial gases , Optimization , Reynolds-averaged Navier–Stokes equations , Turbines
Aerodynamic Improvement of a Transonic Fan Outlet Guide Vane Using 3D Design Optimization
Giles Endicott, Toyotaka Sonoda, Markus Olhofer, Toshiyuki Arima
GT 2011; 1395-1404https://doi.org/10.1115/GT2011-46363
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Topics: Design , Guide vanes , Optimization , Computational fluid dynamics , Deformation , Blades , Boundary layers , Computer simulation , Engines , Flow (Dynamics)
Simulation of Unsteady Turbomachinery Flows Using an Implicitly Coupled Nonlinear Harmonic Balance Method
Jonathan M. Weiss, Venkataramanan Subramanian, Kenneth C. Hall
GT 2011; 1405-1412https://doi.org/10.1115/GT2011-46367
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Topics: Flow (Dynamics) , Simulation , Turbomachinery , Steady state , Fourier series , Linear systems , Rotors , Stators
Optimization of a 3-Stage Booster: Part 1—The Axisymmetric Multi-Disciplinary Optimization Approach to Compressor Design
Kevin Park, Mark G. Turner, Kiran Siddappaji, Soumitr Dey, Ali Merchant
GT 2011; 1413-1422https://doi.org/10.1115/GT2011-46569
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Topics: Compressors , Design , Optimization , Boundary layers , Carbon , Disks , Rotors , Stators , Weight (Mass) , Aerodynamics
Investigation of Transient CFD Methods Applied to a Transonic Compressor Stage
Rob Blumenthal, Brad Hutchinson, Laith Zori
GT 2011; 1423-1430https://doi.org/10.1115/GT2011-46635
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Topics: Compressors , Computational fluid dynamics , Transients (Dynamics) , Blades , Engineering simulation , Flow (Dynamics) , Simulation , Unsteady flow , Annulus , Boundary-value problems
Optimization of a 3-Stage Booster: Part 2—The Parametric 3D Blade Geometry Modeling Tool
Kiran Siddappaji, Mark G. Turner, Soumitr Dey, Kevin Park, Ali Merchant
GT 2011; 1431-1443https://doi.org/10.1115/GT2011-46664
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Topics: Blades , Geometry , Modeling , Optimization , Chords (Trusses) , Computer-aided design , Design , Airfoils , Computational fluid dynamics , Finite element analysis
Two- and Three-Dimensional Prescribed Surface Curvature Distribution Blade Design (CIRCLE) Method for the Design of High Efficiency Turbines, Compressors, and Isolated Airfoils
T. Korakianitis, I. A. Hamakhan, M. A. Rezaienia, A. P. S. Wheeler
GT 2011; 1445-1458https://doi.org/10.1115/GT2011-46722
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Topics: Airfoils , Blades , Compressors , Design , Turbines , Turbine blades , Flow (Dynamics) , Pressure , Shapes , Design methodology
An Inverse Design Based Methodology for Rapid 3D Multi-Objective/Multidisciplinary Optimization of Axial Turbines
Pietro Boselli, Mehrdad Zangeneh
GT 2011; 1459-1468https://doi.org/10.1115/GT2011-46729
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Topics: Design , Optimization , Turbines , Blades , Computational fluid dynamics , Design methodology , Finite element analysis , Rotors , Shapes , Stress
Optimization of an Axial Turbine Stage for Aerodynamic Inlet Blockage
Mohammad Arabnia, Vadivel K. Sivashanmugam, Wahid Ghaly
GT 2011; 1469-1480https://doi.org/10.1115/GT2011-46757
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Topics: Optimization , Turbines , Design , Rotors , Blades , Artificial neural networks , Stress , Flow (Dynamics) , Pressure , Shapes

Unsteady Flows in Turbomachinery

Surge Inception in a Transonic Centrifugal Compressor Stage
Isabelle Tre´binjac, Nicolas Bulot, Xavier Ottavy, Nicolas Buffaz
GT 2011; 1481-1491https://doi.org/10.1115/GT2011-45116
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Topics: Compressors , Surges , Flow (Dynamics) , Diffusers , Shock (Mechanics) , Transducers , Wavelength , Computation , Engineering simulation , Impellers
Rotor-Tip Flow Fields Near Inception Point of Rotating Instability in an Axial-Flow Fan
Takahiro Nishioka, Toshio Kanno, Kiyotaka Hiradate
GT 2011; 1493-1502https://doi.org/10.1115/GT2011-45338
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Topics: Axial flow , Flow (Dynamics) , Rotors , Blades , Leakage , Vortices , Stall inception , Leakage flows , Separation (Technology)
Performance Evaluation of an Unsteady Turbine Driven by a Pulsed Detonation Combustor
Kurt P. Rouser, Paul I. King, Frederick R. Schauer, Rolf Sondergaard, John L. Hoke
GT 2011; 1503-1516https://doi.org/10.1115/GT2011-45396
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Topics: Combustion chambers , Explosions , Performance evaluation , Turbines , Pressure , Flow (Dynamics) , Rotors , Temperature , Torque , Brayton cycle
Study of Unforced and Modulated Inclined Film-Cooling Jets Using Proper Orthogonal Decomposition: Part I—Unforced Jets
Guillaume Bidan, Clementine Vezier, Dimitris E. Nikitopoulos
GT 2011; 1517-1528https://doi.org/10.1115/GT2011-45400
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Topics: Film cooling , Jets , Principal component analysis , Flow (Dynamics) , Cross-flow , Dynamics (Mechanics) , Electromagnetic scattering , Errors , Flat plates , Large eddy simulation
Wavelet Analysis of Vortical Structures in Turbomachinery Applied to PIV Data
Philipp Schaefer, Christian Cierpka, Hans-Ju¨rgen Rehder, Ingo Roehle
GT 2011; 1529-1538https://doi.org/10.1115/GT2011-45462
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Topics: Turbomachinery , Wavelets , Vortices , Algorithms , Blades , Mach number , Cascades (Fluid dynamics) , Convection , Flow (Dynamics) , Particulate matter
Numerical and Experimental Analysis of the Effect of Variable Blade Row Spacing in a Subsonic Axial Turbine
M. Restemeier, P. Jeschke, Y. Guendogdu, J. Gier
GT 2011; 1539-1550https://doi.org/10.1115/GT2011-45637
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Topics: Blades , Experimental analysis , Turbines , Aerodynamics , Axial flow , Engineering simulation , Flow (Dynamics) , Geometry , Jet propulsion , Kinetic energy
Influence of Unsteady Turbine Flow on the Performance of an Exhaust Diffuser
Marcus Kuschel, Joerg R. Seume
GT 2011; 1551-1561https://doi.org/10.1115/GT2011-45673
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Topics: Boundary layers , Diffusers , Exhaust systems , Flow (Dynamics) , Isotropy , Turbines , Vortices , Wire
An Experimental Investigation of Stator Clocking Effects in a Two-Stage Low-Speed Axial Compressor
J. Sta¨ding, D. Wulff, G. Kosyna, B. Becker, V. Gu¨mmer
GT 2011; 1563-1574https://doi.org/10.1115/GT2011-45680
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Topics: Compressors , Stators , Wakes , Blades , Flow (Dynamics) , Indexing (Machining) , Airfoils , Pressure , Pressure measurement , Turbomachinery
Transition Mechanisms in Laminar Separated Flow Under Simulated Low Pressure Turbine Airfoil Conditions
Jerrit Da¨hnert, Christoph Lyko, Dieter Peitsch
GT 2011; 1575-1587https://doi.org/10.1115/GT2011-45690
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Topics: Airfoils , Flow (Dynamics) , Pressure , Turbines , Reynolds number , Separation (Technology) , Bubbles , Turbulence , Suction , Boundary layers
Stall Warning by Blade Pressure Signature Analysis
Anna Young, Ivor Day, Graham Pullan
GT 2011; 1589-1599https://doi.org/10.1115/GT2011-45850
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Topics: Blades , Pressure , Clearances (Engineering) , Flow (Dynamics) , Compressors , Aircraft engines , Annulus , Cycles , Flight , Flow instability
Actuated Transition in an LP Turbine Laminar Separation: An Experimental Approach
Jenny Baumann, Ulrich Rist, Martin Rose, Tobias Ries, Stephan Staudacher
GT 2011; 1601-1612https://doi.org/10.1115/GT2011-45852
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Topics: Separation (Technology) , Turbines , Flow (Dynamics) , Boundary layers , Bubbles , Reynolds number , Blades , Jets , Suction , Turbine blades
Multiscale Partially Averaged Navier Stokes Approach for the Prediction of Flow in Linear Compressor Cascade With Moving Casing
Domenico Borello, Giovanni Delibra, Franco Rispoli
GT 2011; 1613-1622https://doi.org/10.1115/GT2011-45875
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Topics: Cascades (Fluid dynamics) , Compressors , Flow (Dynamics) , Turbomachinery , Blades , Computation , Leakage , Relaxation (Physics) , Simulation , Turbulence
Time-Resolved Numerical Investigation of the Interaction of Labyrinth Seal Leakage and Main-Flow in a 1.5-Stage LP Turbine
Marc H.-O. Biester, Lasse Mueller, Joerg R. Seume, Yavuz Guendogdu
GT 2011; 1623-1632https://doi.org/10.1115/GT2011-45883
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Topics: Flow (Dynamics) , Leakage , Turbines , Cavities , Blades , Computation , Engineering simulation , Leakage flows , Sealing (Process) , Simulation
The Effects of Blade Loading on Trailing Edge Vortex Formation on a Highly Loaded Stator Upstream of a Transonic Rotor
Kenneth P. Clark, Steven E. Gorrell
GT 2011; 1633-1643https://doi.org/10.1115/GT2011-45891
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Topics: Blades , Rotors , Stators , Vortices , Shock (Mechanics) , Compressors , Design , Engineering simulation , Simulation , Suction
Interactions of Separation Bubble With Oncoming Wakes by LES
S. Sarkar, Jasim Sadique
GT 2011; 1645-1656https://doi.org/10.1115/GT2011-46057
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Topics: Bubbles , Separation (Technology) , Wakes
A Numerical Investigation of Rotating Instability in Steam Turbine Last Stage
L. Y. Zhang, L. He, H. Stu¨er
GT 2011; 1657-1666https://doi.org/10.1115/GT2011-46073
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Topics: Steam turbines , Flow (Dynamics) , Blades , Pressure , Rotors , Turbines , Annulus , Compressors , Computational fluid dynamics , Design
Validation of Numerical Simulation for Rotating Stall in a Transonic Fan
Minsuk Choi, Nigel H. S. Smith, Mehdi Vahdati
GT 2011; 1667-1676https://doi.org/10.1115/GT2011-46109
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Topics: Blades , Computer simulation , Design , Flow (Dynamics) , Flow measurement , Pressure , Reynolds-averaged Navier–Stokes equations , Simulation , Stall inception , Transducers
A Summary of Stall Warning and Suppression Research With Micro Tip Injection
Lin Feng, Zhiting Tong, Shaojuan Geng, Jingxuan Zhang, Jingyi Chen, Chaoqun Nie
GT 2011; 1677-1688https://doi.org/10.1115/GT2011-46118
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Topics: Algorithms , Blades , Compressors , Computational fluid dynamics , Control equipment , Engineering simulation , Engineers , Flow (Dynamics) , Jets , Leakage flows
CFD Modeling Effects on Unsteady Multistage Simulation for a Transonic Axial Compressor
Mai Yamagami, Hidekazu Kodama, Dai Kato, Naoki Tsuchiya, Yasuo Horiguchi, Junichi Kazawa
GT 2011; 1689-1702https://doi.org/10.1115/GT2011-46198
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Topics: Compressors , Computational fluid dynamics , Modeling , Simulation , Flow (Dynamics) , Leakage , Stators , Turbulence , Annulus , Cavities
Investigation of the Surge Behavior of a Multi-Stage Axial Compressor With a Multi-Sensor Probe
P. Waniczek, P. Jeschke, H. Schoenenborn, T. Metzler
GT 2011; 1703-1713https://doi.org/10.1115/GT2011-46219
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Topics: Compressors , Probes , Sensors , Surges , Flow (Dynamics) , Rotors , Cycles , Aircraft engines , Blades , High pressure (Physics)
Identification of Spinning Mode in the Unsteady Flow Field of a LP Turbine
Davide Lengani, Berardo Paradiso, Andreas Marn, Emil Go¨ttlich
GT 2011; 1715-1724https://doi.org/10.1115/GT2011-46226
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Topics: Spin (Aerodynamics) , Spinning (Textile) , Turbines , Unsteady flow , Blades , Rotors , Flow (Dynamics) , Probes , Wakes , Aircraft engines
Direct Simulations of Wake-Perturbed Separated Boundary Layers
Ayse G. Gungor, Mark P. Simens, Javier Jime´nez
GT 2011; 1725-1736https://doi.org/10.1115/GT2011-46322
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Topics: Boundary layers , Simulation , Wakes , Pressure , Pressure gradient , Separation (Technology) , Stability , Suction , Bubbles , Computer simulation
An Investigation of Stall Inception in Centrifugal Compressor Vaned Diffusers
J. N. Everitt, Z. S. Spakovszky
GT 2011; 1737-1749https://doi.org/10.1115/GT2011-46332
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Topics: Compressors , Diffusers , Stall inception , Flow (Dynamics) , Simulation , Wavelength , Impellers , Leakage flows , Blades , Machinery
Potential Flow Field Generated by Downstream Moving Bars and Propagated on a Turbine Blade at Low Reynolds Number
Ve´ronique Penin, Pascale Kulisa, Franc¸ois Bario
GT 2011; 1751-1760https://doi.org/10.1115/GT2011-46433
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Topics: Flow (Dynamics) , Reynolds number , Turbine blades , Boundary layers , Cascades (Fluid dynamics) , Rotors , Stators , Blades , Cylinders , Machinery
Turning Mid Turbine Frame Behavior for Different HP Turbine Outflow Conditions
Berardo Paradiso, Cornelia Santner, Josef Hubinka, Emil Go¨ttlich, Martin Hoeger
GT 2011; 1761-1771https://doi.org/10.1115/GT2011-46502
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Topics: Outflow , Turbines , Turning , Flow (Dynamics) , Pressure , Rotors , Engines , Turbulence , Design , Diffusion (Physics)
Application of RANS and LES to the Prediction of Flows in High Pressure Turbine Components
Nicolas Gourdain, Laurent Y. M. Gicquel, Remy Fransen, Elena Collado, Tony Arts
GT 2011; 1773-1785https://doi.org/10.1115/GT2011-46518
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Topics: Flow (Dynamics) , High pressure (Physics) , Reynolds-averaged Navier–Stokes equations , Turbine components , Turbines , Turbulence , Unsteady flow , Flux (Metallurgy) , Guide vanes , Heat
Aerodynamic Characterization of Transonic Turbine Vanes Optimized to Attenuate Rotor Forcing
R. Puente, G. Paniagua, T. Verstraete
GT 2011; 1787-1798https://doi.org/10.1115/GT2011-46553
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Topics: Rotors , Stators , Turbines
Impact of Inter-Stage Dynamics on Stalling Stage Identification
Manuj Dhingra, J. V. R. Prasad, Prashant Tiwari, Tsuguji Nakano, Andy Breeze-Stringfellow
GT 2011; 1799-1808https://doi.org/10.1115/GT2011-46668
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Topics: Dynamics (Mechanics) , Compressors , Pressure , Surges , Transients (Dynamics) , Waves , Compression , Computer simulation , Design , Dynamic models
Study of Unforced and Modulated Inclined Film-Cooling Jets Using Proper Orthogonal Decomposition: Part II—Forced Jets
Guillaume Bidan, Clementine Vezier, Dimitris E. Nikitopoulos
GT 2011; 1809-1822https://doi.org/10.1115/GT2011-46901
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Topics: Film cooling , Jets , Principal component analysis , Flow (Dynamics) , Cross-flow , Cycles , Large eddy simulation , Boundary-value problems , Dynamics (Mechanics) , Electromagnetic scattering

Radial Turbomachinery

A Dual Flow High Mach Number Centrifugal Compressor for a Small Gas Turbine APU
Colin Rodgers, Dan Brown
GT 2011; 1823-1832https://doi.org/10.1115/GT2011-45005
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Topics: Compressors , Flow (Dynamics) , Gas turbines , Mach number , Generators , Aircraft , Compressed air , Computational fluid dynamics , Stress , Air conditioning
Numerical Analysis of Effects of Centrifugal Compressor Impeller Design on Overall- and Flow Field Performance
A. Hildebrandt, H. Franz, C. Jakiel
GT 2011; 1833-1843https://doi.org/10.1115/GT2011-45014
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Topics: Compressor impellers , Design , Flow (Dynamics) , Numerical analysis , Impellers , Computational fluid dynamics , Blades , Compressors , Fluids , Pressure
Experimental and Numerical Analysis of the Flow Field in the Impeller of a Centrifugal Compressor Stage at Design Point
Emanuele Guidotti, Libero Tapinassi, Lorenzo Toni, Lorenzo Bianchi, Paolo Gaetani, Giacomo Persico
GT 2011; 1845-1856https://doi.org/10.1115/GT2011-45036
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Topics: Compressors , Design , Flow (Dynamics) , Impellers , Numerical analysis , Computational fluid dynamics , Pressure , Cavities , Probes , Approximation
Investigation of Self-Recycling-Casing-Treatment (SRCT) Influence on Stability of High Pressure Ratio Centrifugal Compressor With a Volute
Mingyang Yang, Ricardo Martinez-Botas, Yangjun Zhang, Xinqian Zheng, Takahiro Bamba, Hideaki Tamaki, Zhigang Li
GT 2011; 1857-1867https://doi.org/10.1115/GT2011-45065
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Topics: Compressors , High pressure (Physics) , Recycling , Stability , Flow (Dynamics) , Pressure , Impellers , Numerical analysis , Symmetry (Physics) , Computer simulation
Aerodynamic Optimisation of a Centrifugal Compressor Return Channel and U-Turn With Genetic Algorithms
A. Hildebrandt
GT 2011; 1869-1880https://doi.org/10.1115/GT2011-45076
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Topics: Compressors , Genetic algorithms , Optimization , Blades , Artificial neural networks , Pressure , Shapes , Creeping flow , Evolutionary algorithms , Flow (Dynamics)
Experimental and Numerical Investigation of Tip Clearance and Bleed Effects in a Centrifugal Compressor Stage With Pipe Diffuser
Robert Kunte, Philipp Schwarz, Benjamin Wilkosz, Peter Jeschke, Caitlin Smythe
GT 2011; 1881-1895https://doi.org/10.1115/GT2011-45128
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Topics: Clearances (Engineering) , Compressors , Diffusers , Pipes , Flow (Dynamics) , Computational fluid dynamics , Computer simulation , Engineering simulation , High pressure (Physics) , Impellers
Numerical Simulation of Surge in Turbocharger Centrifugal Compressor: Influences of Downstream Plenum
Strong Guo, Hua Chen, Xiaocheng Zhu, Zhaohui Du
GT 2011; 1897-1908https://doi.org/10.1115/GT2011-45163
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Topics: Compressors , Computer simulation , Surges , Turbochargers , Flow (Dynamics) , Cycles , Computational fluid dynamics , Impellers , Vaneless diffusers , Vortices
A Practical Approximate Method to Predict Adjusting Performance of a Centrifugal Compressor Stage With Inlet Guide Vane
Changsheng Liu, Jiajian Tan, Datong Qi, Xuejun Wang, Guoliang Qin
GT 2011; 1909-1918https://doi.org/10.1115/GT2011-45195
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Topics: Compressors , Inlet guide vanes , Construction , Databases , Errors , Reliability
Aerodynamics of a Centrifugal Compressor With a Double Sided Impeller
Vai-Man Lei
GT 2011; 1919-1929https://doi.org/10.1115/GT2011-45215
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Topics: Aerodynamics , Compressors , Impellers , Flow (Dynamics) , Turbines , Computational fluid dynamics , Diffusers , Inertia (Mechanics) , Packaging , Stability
Effect of Recirculation Device With Counter Swirl Vane on Performance of High Pressure Ratio Centrifugal Compressor
Hideaki Tamaki
GT 2011; 1931-1945https://doi.org/10.1115/GT2011-45360
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Topics: Compressors , High pressure (Physics) , Flow (Dynamics) , Impellers , Cavities , Fluids , Mach number , Pressure , Shock (Mechanics) , Turbochargers
Numerical Investigation of Low Solidity Vaned Diffuser Performance in a High-Pressure Centrifugal Compressor: Part III—Tandem Vanes
JongSik Oh, Charles W. Buckley, Giri L. Agrawal
GT 2011; 1947-1955https://doi.org/10.1115/GT2011-45382
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Topics: Compressors , Diffusers , High pressure (Physics) , Flow (Dynamics) , Design , Pressure , Chords (Trusses) , Computation , Impellers , Patents
Numerical Study on the Effects of Blade Lean on High-Pressure Centrifugal Impeller Performance
JongSik Oh, Charles W. Buckley, Giri L. Agrawal
GT 2011; 1957-1969https://doi.org/10.1115/GT2011-45383
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Topics: Blades , High pressure (Physics) , Impellers , Flow (Dynamics) , Computational fluid dynamics , Design , Compressors , Degrees of freedom , Internal flow , Pressure
An Optimization Procedure for the Aerodynamic Model Tuning of Centrifugal Compressor Stages
Susanne Svensdotter, Omar El Shamy, Nidal Ghizawi, Vittorio Michelassi, Sivasubramaniyan Sankaran
GT 2011; 1971-1979https://doi.org/10.1115/GT2011-45499
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Topics: Compressors , Optimization , Design , Databases , Errors , Flow (Dynamics) , Genetic algorithms
A Method to Estimate the Performance Map of a Centrifugal Compressor Stage
Michael Casey, Chris Robinson
GT 2011; 1981-1993https://doi.org/10.1115/GT2011-45502
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Topics: Compressors , Design , Flow (Dynamics) , Turbochargers , Vaneless diffusers , Algebra , Compressor impellers , Geometry , Mach number , Pressure
Comparison Between the Steady Performance of Double-Entry and Twin-Entry Turbocharger Turbines
Alessandro Romagnoli, Colin Copeland, Ricardo Martinez-Botas, Srithar Rajoo, Martin Seiler, Aaron Costall
GT 2011; 1995-2007https://doi.org/10.1115/GT2011-45525
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Topics: Turbines , Turbochargers
An Impact of Various Shroud Bleed Slot Configurations and Cavity Vanes on Compressor Map Width and the Inducer Flow Field
Subenuka Sivagnanasundaram, Stephen Spence, Juliana Early, Bahram Nikpour
GT 2011; 2009-2021https://doi.org/10.1115/GT2011-45629
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Topics: Cavities , Compressors , Flow (Dynamics) , Turbochargers , Computational fluid dynamics , Diesel engines , Geometry , Mesh generation , Pressure , Surges
An Investigation Into Improving Off-Design Performance in a Turbocharger Turbine Utilizing Non-Radial Blading
Jason Walkingshaw, Stephen Spence, Jan Ehrhard, David Thornhill
GT 2011; 2023-2032https://doi.org/10.1115/GT2011-45717
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Topics: Design , Turbines , Turbochargers , Blades , Stress , Flow (Dynamics) , Rotors , Computational fluid dynamics , High pressure (Physics) , Leakage
Innovative Variable Turbine Concept for Turbochargers
Elias Chebli, Michael Casey, Markus Mu¨ller, Siegfried Sumser, Gernot Hertweck, Wolfram Schmid
GT 2011; 2033-2043https://doi.org/10.1115/GT2011-45729
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Topics: Turbines , Turbochargers , Flow (Dynamics) , Geometry , Impellers , Clearances (Engineering) , Computational fluid dynamics , Design , Diesel engines , Displacement
Time-Accurate Calculations of a Passive Shroud Bleed Configuration and Implications for Unsteady Blade Loading
Xiangyang Deng, Elizabeth A. Lurie, Jinzhang Feng
GT 2011; 2045-2055https://doi.org/10.1115/GT2011-45777
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Topics: Blades , Simulation , Flow (Dynamics) , Steady state , Compressors , Impellers , Vaneless diffusers
Towards Large-Eddy Simulation of Turbulent Flow in a Centrifugal Impeller
Gorazd Medic, Jinzhang Feng, Liwei Chen, Om Sharma
GT 2011; 2057-2066https://doi.org/10.1115/GT2011-45804
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Topics: Impellers , Large eddy simulation , Turbulence , Eddies (Fluid dynamics) , Reynolds-averaged Navier–Stokes equations , Simulation , Viscosity , Ducts , NASA , Physics
Dynamic Simulation of Centrifugal Compressor Startup With Inlet Guide Vane
Naoto Ebisawa, Yasuo Fukushima, Hideaki Orikasa
GT 2011; 2067-2074https://doi.org/10.1115/GT2011-45810
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Topics: Compressors , Inlet guide vanes , Simulation , Design , Transients (Dynamics) , Compression , Dynamic models , Engines , Liquefaction , Liquefied natural gas
Evaluation of Heat Transfer Effects on Turbocharger Performance
Borislav Sirakov, Michael Casey
GT 2011; 2075-2086https://doi.org/10.1115/GT2011-45887
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Topics: Heat transfer , Turbochargers , Compressors , Turbines , Cooling , Flow (Dynamics) , Testing , Turbomachinery
Impeller–Vaned Diffuser Interaction in a Centrifugal Compressor at the Best Efficiency Point
P. Gaetani, G. Persico, A. Mora, V. Dossena, C. Osnaghi
GT 2011; 2087-2097https://doi.org/10.1115/GT2011-46223
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Topics: Compressors , Diffusers , Impellers , Flow (Dynamics) , Aircraft engines , Computational fluid dynamics , Engineering simulation , Fluids , Mach number , Machinery
Impeller–Vaned Diffuser Interaction in a Centrifugal Compressor at Off Design Conditions
P. Gaetani, G. Persico, A. Mora, V. Dossena, C. Osnaghi
GT 2011; 2099-2110https://doi.org/10.1115/GT2011-46234
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Topics: Compressors , Design , Diffusers , Impellers , Flow (Dynamics) , Aircraft engines , Mach number , Pressure , Probes , Surges
The Role of Tip Leakage Vortex Breakdown in Flow Fields and Aerodynamic Characteristics of Transonic Centrifugal Compressor Impellers
Kazutoyo Yamada, Masato Furukawa, Hisataka Fukushima, Seiichi Ibaraki, Isao Tomita
GT 2011; 2111-2123https://doi.org/10.1115/GT2011-46253
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Topics: Compressor impellers , Flow (Dynamics) , Leakage , Vortices , Impellers , Blades , Design , Fluctuations (Physics) , Pressure , Pressure transducers
Experimental and Numerical Investigation of Different Rectangular Volute Geometries for Large Radial Compressors
Michael Bartelt, Thomas Kwitschinski, Thomas Ceyrowsky, Daniel Grates, Joerg R. Seume
GT 2011; 2125-2137https://doi.org/10.1115/GT2011-46296
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Topics: Compressors , Flow (Dynamics) , Design , Dimensions , Pressure , Computational fluid dynamics , Machine components , Machinery
A Numerical and Experimental Investigation of the Effects of Flow Ratio on the Flow and Performance Characteristics of a Twin Entry Radial Turbine
M. R. Shahhosseini, A. Hajilouy-Benisi, M. Rajabian
GT 2011; 2139-2153https://doi.org/10.1115/GT2011-46308
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Topics: Flow (Dynamics) , Performance characterization , Turbines , Entropy , Pressure , Rotors , Turbochargers , Corners (Structural elements) , Impellers , Inflow
Performance Analysis of a Microturbine Centrifugal Compressor From a Manufacturing Perspective
A. Javed, M. Olivero, R. Pecnik, J. P. van Buijtenen
GT 2011; 2155-2166https://doi.org/10.1115/GT2011-46374
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Topics: Compressors , Manufacturing , Microturbines , Design , Computational fluid dynamics , Impellers , Modeling , Design for Manufacturing , Engineering drawings , Entropy
Optimization of 6.2:1 Pressure Ratio Centrifugal Compressor Impeller by 3D Inverse Design
M. Zangeneh, N. Amarel, K. Daneshkhah, H. Krain
GT 2011; 2167-2177https://doi.org/10.1115/GT2011-46505
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Topics: Compressor impellers , Design , Optimization , Pressure , Impellers , Blades , Flow (Dynamics) , Computational fluid dynamics , Design methodology , Equipment performance
Computational Investigation of the Three-Dimensional Flow Structure and Losses in a Low Reynolds Number Microturbine
M. Omri, L. G. Fre´chette
GT 2011; 2179-2187https://doi.org/10.1115/GT2011-46587
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Topics: Flow (Dynamics) , Microturbines , Reynolds number , Vortices , Wake turbulence , Blades , Clearances (Engineering) , Rotation , Rotors , Stators
Influence of the Different Design Parameters to the Centrifugal Compressor Tip Clearance Loss
Teemu Turunen-Saaresti, Ahti Jaatinen
GT 2011; 2189-2196https://doi.org/10.1115/GT2011-46627
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Topics: Clearances (Engineering) , Compressors , Design , Blades , Diffusion (Physics)
Automotive Turbocharger Compressor CFD and Extension Towards Incorporating Installation Effects
Onur Baris, Fred Mendonc¸a
GT 2011; 2197-2206https://doi.org/10.1115/GT2011-46796
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Topics: Compressors , Computational fluid dynamics , Turbochargers , Ducts , Flow (Dynamics) , Computation , Design , Geometry , Inflow , Inlet guide vanes
Understanding the Twin Scroll Turbine: Flow Similarity
Nils Brinkert, Siegfried Sumser, Achmed Schulz, Siegfried Weber, Klaus Fieweger, Hans-Jo¨rg Bauer
GT 2011; 2207-2218https://doi.org/10.1115/GT2011-46820
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Topics: Flow (Dynamics) , Turbines , Engines , Pressure , Temperature , Exhaust gas recirculation , Internal combustion engines , Mach number , Turbochargers
Assessment of Various Turbulence Models in a High Pressure Ratio Centrifugal Compressor With an Object Oriented CFD Code
Luca Mangani, Ernesto Casartelli, Sebastiano Mauri
GT 2011; 2219-2229https://doi.org/10.1115/GT2011-46829
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Topics: Compressors , Computational fluid dynamics , High pressure (Physics) , Turbulence , Boundary layers , Flow (Dynamics) , Pressure gradient , Internal flow , Machinery , Numerical analysis
Annular Cascade for Radial Compressor Development
Christian Aalburg, Ismail Sezal, Christian Haigermoser, Alexander Simpson, Vittorio Michelassi, Giuseppe Sassanelli
GT 2011; 2231-2242https://doi.org/10.1115/GT2011-46834
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Topics: Cascades (Fluid dynamics) , Compressors , Stators , Design , Diffusers , Impellers , Annulus , Calibration , Diffusion (Physics) , Flow (Dynamics)

Steam Turbines

Design Considerations for Axial Steam Turbine Rotor Inlet Cavity Volume and Length Scale
Konstantinos G. Barmpalias, Anestis I. Kalfas, Reza S. Abhari, Toshio Hirano, Naoki Shibukawa, Takashi Sasaki
GT 2011; 2243-2254https://doi.org/10.1115/GT2011-45127
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Topics: Cavities , Design , Rotors , Steam turbines , Vortices , Stators , Aerodynamics , Flow (Dynamics)
Experimental Investigation of Geometrical Parameters on the Pressure Recovery of Low Pressure Steam Turbine Exhaust Hoods
Conrad Finzel, Markus Schatz, Michael V. Casey, Daniel Gloss
GT 2011; 2255-2263https://doi.org/10.1115/GT2011-45302
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Topics: Exhaust systems , Pressure , Steam turbines , Flow (Dynamics) , Design , Diffusers , Flow measurement , Mach number , Outflow , Probes
Unsteady Wetness Effects in LP Steam Turbines
Kane D. Chandler, Alexander J. White, John B. Young
GT 2011; 2265-2273https://doi.org/10.1115/GT2011-45320
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Topics: Steam turbines , Drops , Flow (Dynamics) , Chopping (Physics) , Spectra (Spectroscopy) , Wakes , Blades , Cascades (Fluid dynamics) , Computational fluid dynamics , Computational methods
Validation of Conjugate Heat Transfer Predictions on Labyrinth Seals and Novel Designs for Improved Component Lifetime
Dominik Born, Kurt Heiniger, Giorgio Zanazzi, Thomas Mokulys, Patrick Grossmann, Luca Ripamonti, Michael Sell
GT 2011; 2275-2287https://doi.org/10.1115/GT2011-45358
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Topics: Heat transfer , Steam turbines , Steam , Temperature , Heat transfer coefficients , Rotors , Turbines , Blades , Cycles , Design
A Numerical Method for Turbulent Flows in Highly Staggered and Low Solidity Supersonic Turbine Cascades
Shigeki Senoo, Kazuya Sakakibara, Takeshi Kudo, Naoaki Shibashita
GT 2011; 2289-2300https://doi.org/10.1115/GT2011-45450
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Topics: Numerical analysis , Turbines , Turbulence , Flow (Dynamics) , Shock waves , Blades , Boundary-value problems , Reflection , Cascades (Fluid dynamics) , Compressors
Preventing Standstill Corrosion on LP Turbines Through Optimized Shutdown Procedures
Frank Udo Leidich, Markus Theobald
GT 2011; 2301-2308https://doi.org/10.1115/GT2011-45458
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Topics: Corrosion , Turbines , Preservation , Exhaust systems , Instrumentation , Probability , Solar power , Steam , Thermal power stations , Wind farms
A Three-Dimensional Diffuser Design for the Retrofit of a Low Pressure Turbine Using In-House Exhaust Design System
Sungho Yoon, Felix Joe Stanislaus, Thomas Mokulys, Gurnam Singh, Martin Claridge
GT 2011; 2309-2319https://doi.org/10.1115/GT2011-45466
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Topics: Design , Diffusers , Exhaust systems , Pressure , Turbines , Flow (Dynamics) , Machinery , Blades , Computer simulation , Flow separation
Development and Strategy for A-USC Steam Turbine Cycle
Nobuo Okita, Takashi Sasaki, Takeo Suga, Shogo Iwai
GT 2011; 2321-2325https://doi.org/10.1115/GT2011-45549
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Topics: Cycles , Steam turbines , Steam , Thermal efficiency , Alloys , Design , Emissions , Fossil fuels , Heat , High pressure (Physics)
Three-Dimensional Flow Separations in the Diffuser of a Steam Turbine Control Valve
Manuel B. Clari, Thomas Polklas, Franz Joos
GT 2011; 2327-2334https://doi.org/10.1115/GT2011-45617
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Topics: Diffusers , Flow separation , Steam turbines , Valves , Transients (Dynamics) , Compressed air , Compressors , Computational fluid dynamics , Design , Engineering simulation
Modelling and Validation of Wet Steam Flow in a Low Pressure Steam Turbine
Jo¨rg Starzmann, M. Schatz, M. V. Casey, J. F. Mayer, Frank Sieverding
GT 2011; 2335-2346https://doi.org/10.1115/GT2011-45672
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Topics: Flow (Dynamics) , Modeling , Pressure , Steam , Steam turbines , Drops , Turbines , Condensation , Nucleation (Physics) , Blades
Numerical Investigation of Exhaust Diffuser Performances in Low Pressure Turbine Casings
Tadashi Tanuma, Yasuhiro Sasao, Satoru Yamamoto, Shinji Takada, Yoshiki Niizeki, Naoki Shibukawa, Hiroshi Saeki
GT 2011; 2347-2357https://doi.org/10.1115/GT2011-45677
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Topics: Diffusers , Exhaust systems , Pressure , Turbines , Computational fluid dynamics , Steam turbines , Boundary layers , Boundary-value problems , Condensation , Design
Mechanical Design of Highly Loaded Large Steam Turbines
N. Lu¨ckemeyer, H. Almstedt, T.-U. Kern, H. Kirchner
GT 2011; 2359-2369https://doi.org/10.1115/GT2011-45703
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Topics: Design engineering , Steam turbines , Design , Creep , Pressure , Alloys , ASME Boiler and Pressure Vessel Code , Boilers , Combined cycle power stations , Failure
Rotor Life Prediction and Improvement for Steam Turbines Under Cyclic Operation
Damaso Checcacci, Lorenzo Cosi, Sanjay Kumar Sah
GT 2011; 2371-2379https://doi.org/10.1115/GT2011-45792
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Topics: Rotors , Steam turbines , Transients (Dynamics) , Combined cycle power stations , Finite element methods , Finite element model , Maintenance , Modeling , Stress , Switches
Validation of Advanced Steam Turbine Technology: A Case Study of an Ultra Super Critical Steam Turbine Power Plant
Rainer Quinkertz, Thomas Thiemann, Kai Gierse
GT 2011; 2381-2391https://doi.org/10.1115/GT2011-45816
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Topics: Power stations , Steam turbines , Design , High pressure (Physics) , Temperature distribution , Turbines , China , Coal , Cooling systems , Emissions
Profiled Endwall Design Using Genetic Algorithms With Different Objective Functions
Jamie McIntosh, Richard MacPherson, Grant Ingram, Simon Hogg
GT 2011; 2393-2405https://doi.org/10.1115/GT2011-45836
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Topics: Design , Genetic algorithms , High pressure (Physics) , Blades , Gas turbines , Kinetic energy , Pressure , Steam turbines , Tradeoffs , Turbines
Optimization Strategy for a Coupled Design of the Last Stage and the Successive Diffuser in a Low Pressure Steam Turbine
Christian Musch, Heinrich Stu¨er, Georg Hermle
GT 2011; 2407-2415https://doi.org/10.1115/GT2011-46180
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Topics: Design , Diffusers , Optimization , Pressure , Steam turbines , Flow (Dynamics) , Blades , Computational fluid dynamics , Engineering simulation , Simulation
Numerical Optimization of a Steam Turbine Control Stage by Flowpath Profiling Using Evolutionary Algorithm
Nils Moser, Rene´ Volkert, Franz Joos
GT 2011; 2417-2426https://doi.org/10.1115/GT2011-46237
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Topics: Evolutionary algorithms , Optimization , Steam turbines , Flow (Dynamics) , Blades , Computational fluid dynamics , Geometry , Guide vanes , Nozzles , Pressure
Performance Analysis of a 565 MW Steam Power Plant
R. Chacartegui, D. Sa´nchez, J. A. Becerra, A. Mun˜oz, T. Sa´nchez
GT 2011; 2427-2436https://doi.org/10.1115/GT2011-46272
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Topics: Thermal power stations , Feedwater , Maintenance , Artillery , Fossil fuels , Generators , Power stations , Simulation , Steam turbines , Stress
A Correlation Between Vibration Stresses and Flow Features of Steam Turbine Long Blades in Low Load Conditions
Naoki Shibukawa, Tomohiro Tejima, Yoshifumi Iwasaki, Itaru Murakami, Ikuo Saito
GT 2011; 2437-2446https://doi.org/10.1115/GT2011-46368
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Topics: Blades , Flow (Dynamics) , Steam turbines , Stress , Vibration , Pressure , Computational fluid dynamics , Aerodynamics , Fluid-dynamic forces , Simulation
Forced Response Prediction for Steam Turbine Last Stage Blade Subject to Low Engine Order Excitation
Bin Zhou, Amir Mujezinovic, Andrew Coleman, Wei Ning, Asif Ansari
GT 2011; 2447-2453https://doi.org/10.1115/GT2011-46856
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Topics: Blades , Engines , Excitation , Steam turbines , Pressure , Design , Flow (Dynamics) , Computational fluid dynamics , High cycle fatigue , Steam
Testing of Full Speed No Load Operating Conditions in a Subscale Steam Turbine Test Vehicle
John Basirico, Bin Zhou, Amir Mujezinovic, Yuri Starodubtsev, Boris Frolov
GT 2011; 2455-2461https://doi.org/10.1115/GT2011-46857
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Topics: Steam turbines , Stress , Testing , Vehicles , Pressure , Turbines , Exhaust systems , Flow (Dynamics) , Steam , Computational fluid dynamics
Analyses of Temperature Distribution on Steam Turbine Last Stage Low Pressure Buckets at Low Flow Operations
Victor Filippenko, Boris Frolov, Andrey Chernobrovkin, Bin Zhou, Amir Mujezinovic´, Jon Slepski
GT 2011; 2463-2469https://doi.org/10.1115/GT2011-46858
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Topics: Flow (Dynamics) , Pressure , Steam turbines , Temperature distribution
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