Volume 134 Issue 4 | J. Turbomach. | ASME Digital Collection

Research Papers

Reduced Order Model of a Multistage Bladed Rotor With Geometric Mistuning via Modal Analyses of Finite Element Sectors

J. Turbomach. July 2012, 134(4): 041001. doi: https://doi.org/10.1115/1.4003224

View articletitled, Reduced Order Model of a Multistage Bladed Rotor With Geometric Mistuning via Modal Analyses of Finite Element Sectors

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Topics: Blades , Rotors , Finite element analysis

Unsteady Interactions Between Axial Turbine and Nonaxisymmetric Exhaust Hood Under Different Operational Conditions

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

J. Turbomach. July 2012, 134(4): 041002. doi: https://doi.org/10.1115/1.4003647

Abstract

View articletitled, Unsteady Interactions Between Axial Turbine and Nonaxisymmetric Exhaust Hood Under Different Operational Conditions

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Topics: Exhaust systems , Flow (Dynamics) , Pressure , Turbines , Blades , Rotors , Unsteady flow , Stators

A Calculation Tool of a Turbine Cooling Air Schedule for General Gas Turbine Simulation Algorithms

Valerio Lallini, Jan Janikovic, Pericles Pilidis, Riti Singh, Panagiotis Laskaridis

J. Turbomach. July 2012, 134(4): 041003. doi: https://doi.org/10.1115/1.4003648

Abstract

View articletitled, A Calculation Tool of a Turbine Cooling Air Schedule for General Gas Turbine Simulation Algorithms

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Topics: Cooling , Engines , Flow (Dynamics) , Turbines , Gas turbines , Simulation , Design

Heat Transfer and Film Cooling of Blade Tips and Endwalls

S. Naik, C. Georgakis, T. Hofer, D. Lengani

J. Turbomach. July 2012, 134(4): 041004. doi: https://doi.org/10.1115/1.4003652

Abstract

View articletitled, Heat Transfer and Film Cooling of Blade Tips and Endwalls

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Topics: Airfoils , Blades , Cavities , Coolants , Film cooling , Flow (Dynamics) , Heat transfer , Heat transfer coefficients , Pressure , Geometry

Effect of Pulsed Film Cooling on Leading Edge Film Effectiveness

Lamyaa A. El-Gabry, Richard B. Rivir

J. Turbomach. July 2012, 134(4): 041005. doi: https://doi.org/10.1115/1.4003653

Abstract

View articletitled, Effect of Pulsed Film Cooling on Leading Edge Film Effectiveness

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Topics: Coolants , Cycles , Film cooling , Flow (Dynamics) , Pulsatile flow , Wall temperature , Cooling , Jets , Temperature

Compressor Performance and Operability in Swirl Distortion

Yogi Sheoran, Bruce Bouldin, P. Murali Krishnan

J. Turbomach. July 2012, 134(4): 041008. doi: https://doi.org/10.1115/1.4003657

Abstract

View articletitled, Compressor Performance and Operability in Swirl Distortion

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Topics: Compressors , Computational fluid dynamics , Generators , Pressure , Rotors , Engines

Effects of Trenched Holes on Film Cooling of a Contoured Endwall Nozzle Vane

Giovanna Barigozzi, Giuseppe Franchini, Antonio Perdichizzi, Silvia Ravelli

J. Turbomach. July 2012, 134(4): 041009. doi: https://doi.org/10.1115/1.4003658

Abstract

View articletitled, Effects of Trenched Holes on Film Cooling of a Contoured Endwall Nozzle Vane

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Topics: Coolants , Cooling , Film cooling , Flow (Dynamics) , Nozzles , Pressure , Turbulence , Cascades (Fluid dynamics) , Momentum

A 3D Compressible Flow Model for Weak Rotating Waves in Vaneless Diffusers—Part I: The Model and Mach Number Effects

Hua Chen, Feng Shen, Xiao-Cheng Zhu, Zhao-Hui Du

J. Turbomach. July 2012, 134(4): 041010. doi: https://doi.org/10.1115/1.4003655

Abstract

View articletitled, A 3D Compressible Flow Model for Weak Rotating Waves in Vaneless Diffusers—Part I: The Model and Mach Number Effects

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Topics: Compressible flow , Diffusers , Flow (Dynamics) , Mach number , Vaneless diffusers , Waves

A 3D Compressible Flow Model for Weak Rotating Waves in Vaneless Diffusers—Part II: Detailed Results

Feng Sheng, Hua Chen, Xiao-cheng Zhu, Zhao-hui Du

J. Turbomach. July 2012, 134(4): 041011. doi: https://doi.org/10.1115/1.4003654

Abstract

View articletitled, A 3D Compressible Flow Model for Weak Rotating Waves in Vaneless Diffusers—Part II: Detailed Results

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Topics: Compressible flow , Diffusers , Impellers , Mach number , Resonance , Vaneless diffusers , Waves , Flow (Dynamics)

Effect of Impeller Blade Loading on Compressor Stage Performance in a High Specific Speed Range

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

J. Turbomach. July 2012, 134(4): 041012. doi: https://doi.org/10.1115/1.4003659

Abstract

View articletitled, Effect of Impeller Blade Loading on Compressor Stage Performance in a High Specific Speed Range

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Topics: Blades , Compressors , Design , Flow (Dynamics) , Impellers , Surges

Deposition Near Film Cooling Holes on a High Pressure Turbine Vane

Weiguo Ai, Nathan Murray, Thomas H. Fletcher, Spencer Harding, Scott Lewis, Jeffrey P. Bons

J. Turbomach. July 2012, 134(4): 041013. doi: https://doi.org/10.1115/1.4003672

Abstract

View articletitled, Deposition Near Film Cooling Holes on a High Pressure Turbine Vane

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Topics: Coolants , Cooling , Film cooling , Flow (Dynamics) , Particulate matter , Temperature , Turbines , Coal , Combustion chambers , Combustion

Film Cooling Effect of Rotor-Stator Purge Flow on Endwall Heat/Mass Transfer

M. Papa, V. Srinivasan, R. J. Goldstein

J. Turbomach. July 2012, 134(4): 041014. doi: https://doi.org/10.1115/1.4003725

Abstract

View articletitled, Film Cooling Effect of Rotor-Stator Purge Flow on Endwall Heat/Mass Transfer

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Topics: Blades , Coolants , Cooling , Film cooling , Flow (Dynamics) , Mass transfer , Pressure , Rotors , Stators , Suction

Film Cooling Performance of Sharp Edged Diffuser Holes With Lateral Inclination

Christian Heneka, Achmed Schulz, Hans-Jörg Bauer, Andreas Heselhaus, Michael E. Crawford

J. Turbomach. July 2012, 134(4): 041015. doi: https://doi.org/10.1115/1.4003726

Abstract

View articletitled, Film Cooling Performance of Sharp Edged Diffuser Holes With Lateral Inclination

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Topics: Coolants , Diffusers , Film cooling , Cooling

Experimental Investigation of Conjugate Heat Transfer in a Rib-Roughened Trailing Edge Channel With Crossing Jets

Filippo Coletti, Manfredi Scialanga, Tony Arts

J. Turbomach. July 2012, 134(4): 041016. doi: https://doi.org/10.1115/1.4003727

Abstract

View articletitled, Experimental Investigation of Conjugate Heat Transfer in a Rib-Roughened Trailing Edge Channel With Crossing Jets

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Topics: Cooling , Heat flux , Heat transfer , Temperature , Thermal conductivity , Wall temperature , Heat conduction , Jets , Flow (Dynamics) , Engines

Analysis of the Variable Geometry Effect in Radial Turbines

Nicolas Binder, Sebastien Le Guyader, Xavier Carbonneau

J. Turbomach. July 2012, 134(4): 041017. doi: https://doi.org/10.1115/1.4003713

Abstract

View articletitled, Analysis of the Variable Geometry Effect in Radial Turbines

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Topics: Geometry , Pressure , Stators , Flow (Dynamics) , Turbines , Blades

Design and Testing of Multistage Centrifugal Compressors With Small Diffusion Ratios

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

J. Turbomach. July 2012, 134(4): 041019. doi: https://doi.org/10.1115/1.4003715

Abstract

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

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Topics: Design , Diffusion (Physics) , Flow (Dynamics) , Impellers , Optimization , Compressors , Computational fluid dynamics , Stators

Computational Analysis of Conjugate Heat Transfer and Particulate Deposition on a High Pressure Turbine Vane

Weiguo Ai, Thomas H. Fletcher

J. Turbomach. July 2012, 134(4): 041020. doi: https://doi.org/10.1115/1.4003716

Abstract

View articletitled, Computational Analysis of Conjugate Heat Transfer and Particulate Deposition on a High Pressure Turbine Vane

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Topics: Film cooling , Flow (Dynamics) , Heat transfer , Particulate matter , Temperature , Simulation , Turbines , Cooling , Turbulence , Coolants

Effect of Hole Spacing on Deposition of Fine Coal Flyash Near Film Cooling Holes

Weiguo Ai, Nathan Murray, Thomas H. Fletcher, Spencer Harding, Jeffrey P. Bons

J. Turbomach. July 2012, 134(4): 041021. doi: https://doi.org/10.1115/1.4003717

Abstract

View articletitled, Effect of Hole Spacing on Deposition of Fine Coal Flyash Near Film Cooling Holes

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Topics: Coolants , Cooling , Film cooling , Flow (Dynamics) , Fly ash , Metals , Particulate matter , Temperature , Coal , Thermal barrier coatings

Analysis of Unsteady Tip and Endwall Heat Transfer in a Highly Loaded Transonic Turbine Stage

Vikram Shyam, Ali Ameri, Jen-Ping Chen

J. Turbomach. July 2012, 134(4): 041022. doi: https://doi.org/10.1115/1.4003719

Abstract

View articletitled, Analysis of Unsteady Tip and Endwall Heat Transfer in a Highly Loaded Transonic Turbine Stage

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Topics: Blades , Flow (Dynamics) , Heat flux , Heat transfer , Pressure , Rotors , Simulation , Temperature , Turbines , Turbulence

Research Papers

Experimental Study of Surface Roughness Effects on a Turbine Airfoil in a Linear Cascade— Part I: External Heat Transfer

M. Lorenz, A. Schulz, H.-J. Bauer

J. Turbomach. July 2012, 134(4): 041006. doi: https://doi.org/10.1115/1.4003234

Abstract

View articletitled, Experimental Study of Surface Roughness Effects on a Turbine Airfoil in a Linear Cascade— Part I: External Heat Transfer

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Topics: Heat transfer , Surface roughness , Turbulence , Airfoils , Pressure , Suction , Cascades (Fluid dynamics)

Experimental Study of Surface Roughness Effects on a Turbine Airfoil in a Linear Cascade— Part II: Aerodynamic Losses

M. Lorenz, A. Schulz, H.-J. Bauer

J. Turbomach. July 2012, 134(4): 041007. doi: https://doi.org/10.1115/1.4003656

Abstract

View articletitled, Experimental Study of Surface Roughness Effects on a Turbine Airfoil in a Linear Cascade— Part II: Aerodynamic Losses

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Topics: Boundary layers , Surface roughness , Airfoils , Turbulence , Suction

Impact of the Inflow Conditions on the Heavy-Duty Gas Turbine Exhaust Diffuser Performance

Vladimir Vassiliev, Stefan Irmisch, Samer Abdel-Wahab, Andrey Granovskiy

J. Turbomach. July 2012, 134(4): 041018. doi: https://doi.org/10.1115/1.4003714

Abstract

View articletitled, Impact of the Inflow Conditions on the Heavy-Duty Gas Turbine Exhaust Diffuser Performance

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Topics: Diffusers , Exhaust systems , Inflow , Pressure , Gas turbines , Flow (Dynamics) , Mach number

Technical Briefs

Prediction of Vibration Response Levels of Mistuned Integral Bladed Disks (Blisks): Robustness Studies

Y.-J. Chan, D. J. Ewins

J. Turbomach. July 2012, 134(4): 044501. doi: https://doi.org/10.1115/1.4003646

Abstract

View articletitled, Prediction of Vibration Response Levels of Mistuned Integral Bladed Disks (Blisks): Robustness Studies

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Topics: Algorithms , Blades , Disks , Errors , Excitation , Mode shapes , Robustness , Vibration , Damping , Compressors

Research Papers

Reduced Order Model of a Multistage Bladed Rotor With Geometric Mistuning via Modal Analyses of Finite Element Sectors

Unsteady Interactions Between Axial Turbine and Nonaxisymmetric Exhaust Hood Under Different Operational Conditions

A Calculation Tool of a Turbine Cooling Air Schedule for General Gas Turbine Simulation Algorithms

Heat Transfer and Film Cooling of Blade Tips and Endwalls

Effect of Pulsed Film Cooling on Leading Edge Film Effectiveness

Compressor Performance and Operability in Swirl Distortion

Effects of Trenched Holes on Film Cooling of a Contoured Endwall Nozzle Vane

A 3D Compressible Flow Model for Weak Rotating Waves in Vaneless Diffusers—Part I: The Model and Mach Number Effects

A 3D Compressible Flow Model for Weak Rotating Waves in Vaneless Diffusers—Part II: Detailed Results

Effect of Impeller Blade Loading on Compressor Stage Performance in a High Specific Speed Range

Deposition Near Film Cooling Holes on a High Pressure Turbine Vane

Film Cooling Effect of Rotor-Stator Purge Flow on Endwall Heat/Mass Transfer

Film Cooling Performance of Sharp Edged Diffuser Holes With Lateral Inclination

Experimental Investigation of Conjugate Heat Transfer in a Rib-Roughened Trailing Edge Channel With Crossing Jets

Analysis of the Variable Geometry Effect in Radial Turbines

Design and Testing of Multistage Centrifugal Compressors With Small Diffusion Ratios

Computational Analysis of Conjugate Heat Transfer and Particulate Deposition on a High Pressure Turbine Vane

Effect of Hole Spacing on Deposition of Fine Coal Flyash Near Film Cooling Holes

Analysis of Unsteady Tip and Endwall Heat Transfer in a Highly Loaded Transonic Turbine Stage

Research Papers

Experimental Study of Surface Roughness Effects on a Turbine Airfoil in a Linear Cascade— Part I: External Heat Transfer

Experimental Study of Surface Roughness Effects on a Turbine Airfoil in a Linear Cascade— Part II: Aerodynamic Losses

Impact of the Inflow Conditions on the Heavy-Duty Gas Turbine Exhaust Diffuser Performance

Technical Briefs

Prediction of Vibration Response Levels of Mistuned Integral Bladed Disks (Blisks): Robustness Studies

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