Volume 130 Issue 3 | J. Turbomach. | ASME Digital Collection

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Volume 130, Issue 3

July 2008

ISSN 0889-504X

EISSN 1528-8900

Research Papers

Calculation of the Time-Averaged Flow in Squirrel-Cage Blowers by Substituting Blades With Equivalent Forces

Markus Tremmel, Dale B. Taulbee

J. Turbomach. July 2008, 130(3): 031001. doi: https://doi.org/10.1115/1.2775483

Abstract

View articletitled, Calculation of the Time-Averaged Flow in Squirrel-Cage Blowers by Substituting Blades With Equivalent Forces

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Topics: Blades , Flow (Dynamics) , Pressure , Machinery

Clearance Effects on the Onset of Instability in a Centrifugal Compressor

Matthias Schleer, Seung Jin Song, Reza S. Abhari

J. Turbomach. July 2008, 130(3): 031002. doi: https://doi.org/10.1115/1.2776956

Abstract

View articletitled, Clearance Effects on the Onset of Instability in a Centrifugal Compressor

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

Causes of Acoustic Resonance in a High-Speed Axial Compressor

Bernd Hellmich, Joerg R. Seume

J. Turbomach. July 2008, 130(3): 031003. doi: https://doi.org/10.1115/1.2775487

Abstract

View articletitled, Causes of Acoustic Resonance in a High-Speed Axial Compressor

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Topics: Acoustics , Compressors , Flow (Dynamics) , Resonance , Blades , Pressure , Rotors

Internal Cooling Near Trailing Edge of a Gas Turbine Airfoil With Cooling Airflow Through Blockages With Holes

S. C. Lau, J. Cervantes, J. C. Han, R. J. Rudolph

J. Turbomach. July 2008, 130(3): 031004. doi: https://doi.org/10.1115/1.2775489

Abstract

View articletitled, Internal Cooling Near Trailing Edge of a Gas Turbine Airfoil With Cooling Airflow Through Blockages With Holes

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Topics: Air flow , Airfoils , Cooling , Flow (Dynamics) , Gas turbines , Heat , Heat transfer , Mass transfer , Reynolds number , Heat transfer coefficients

Experimental Flow Structure Investigation of Compound Angled Film Cooling

Vipluv Aga, Martin Rose, Reza S. Abhari

J. Turbomach. July 2008, 130(3): 031005. doi: https://doi.org/10.1115/1.2775491

Abstract

View articletitled, Experimental Flow Structure Investigation of Compound Angled Film Cooling

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Topics: Film cooling , Flow (Dynamics) , Vorticity , Boundary layers , Coolants , Geometry

A Criterion for Axial Compressor Hub-Corner Stall

V.-M. Lei, Z. S. Spakovszky, E. M. Greitzer

J. Turbomach. July 2008, 130(3): 031006. doi: https://doi.org/10.1115/1.2775492

Abstract

View articletitled, A Criterion for Axial Compressor Hub-Corner Stall

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Topics: Blades , Compressors , Corners (Structural elements) , Diffusion (Physics) , Flow (Dynamics)

A Comparison of Cylindrical and Fan-Shaped Film-Cooling Holes on a Vane Endwall at Low and High Freestream Turbulence Levels

W. Colban, K. A. Thole, M. Haendler

J. Turbomach. July 2008, 130(3): 031007. doi: https://doi.org/10.1115/1.2720493

Abstract

View articletitled, A Comparison of Cylindrical and Fan-Shaped Film-Cooling Holes on a Vane Endwall at Low and High Freestream Turbulence Levels

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Topics: Cooling , Film cooling , Flow (Dynamics) , Turbulence , Coolants

Computations of Turbulent Flow and Heat Transfer Through a Three-Dimensional Nonaxisymmetric Blade Passage

Arun K. Saha, Sumanta Acharya

J. Turbomach. July 2008, 130(3): 031008. doi: https://doi.org/10.1115/1.2776952

Abstract

View articletitled, Computations of Turbulent Flow and Heat Transfer Through a Three-Dimensional Nonaxisymmetric Blade Passage

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Topics: Blades , Computation , Design , Flow (Dynamics) , Heat transfer , Pressure , Suction , Turbulence , Chords (Trusses) , Vortices

Clearance Effects on the Evolution of the Flow in the Vaneless Diffuser of a Centrifugal Compressor at Part Load Condition

Matthias Schleer, Reza S. Abhari

J. Turbomach. July 2008, 130(3): 031009. doi: https://doi.org/10.1115/1.2776955

Abstract

View articletitled, Clearance Effects on the Evolution of the Flow in the Vaneless Diffuser of a Centrifugal Compressor at Part Load Condition

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Topics: Clearances (Engineering) , Diffusers , Flow (Dynamics) , Impellers , Wakes , Compressors , Vaneless diffusers , Blades

Inner Workings of Shrouded and Unshrouded Transonic Fan Blades

A. R. Wadia, P. N. Szucs

J. Turbomach. July 2008, 130(3): 031010. doi: https://doi.org/10.1115/1.2776957

Abstract

View articletitled, Inner Workings of Shrouded and Unshrouded Transonic Fan Blades

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Topics: Blades , Design , Mach number , Pressure , Rotors , Suction , Shock (Mechanics) , Boundary layers , Flow (Dynamics)

Development and Demonstration of a Stability Management System for Gas Turbine Engines

D. Christensen, P. Cantin, D. Gutz, P. N. Szucs, A. R. Wadia, J. Armor, M. Dhingra, Y. Neumeier, J. V. R. Prasad

J. Turbomach. July 2008, 130(3): 031011. doi: https://doi.org/10.1115/1.2777176

Abstract

View articletitled, Development and Demonstration of a Stability Management System for Gas Turbine Engines

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Topics: Compressors , Engines , Gas turbines , Stability , Signals , Rotors , Fuels , Pressure , Transients (Dynamics)

Rapid Prototyping Design Optimization Using Flow Sculpting

W. N. Dawes

J. Turbomach. July 2008, 130(3): 031012. doi: https://doi.org/10.1115/1.2777178

Abstract

View articletitled, Rapid Prototyping Design Optimization Using Flow Sculpting

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Topics: Design , Flow (Dynamics) , Geometry , Rapid prototyping , Cooling , Computational fluid dynamics , Blades , Optimization , Solid models , Solid modeling

Bowl-Type Diffusers for Low Specific-Speed Pumps: An Industrial Application

Paolo Boncinelli, Roberto Biagi, Antonio Focacci, Umberto Corradini, Andrea Arnone, Marco Bernacca, Massimiliano Borghetti

J. Turbomach. July 2008, 130(3): 031013. doi: https://doi.org/10.1115/1.2777182

Abstract

View articletitled, Bowl-Type Diffusers for Low Specific-Speed Pumps: An Industrial Application

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Topics: Blades , Design , Diffusers , Flow (Dynamics) , Impellers , Pumps , Geometry

Control of Rotor Tip Leakage Through Cooling Injection From the Casing in a High-Work Turbine

Thomas Behr, Anestis I. Kalfas, Reza S. Abhari

J. Turbomach. July 2008, 130(3): 031014. doi: https://doi.org/10.1115/1.2777185

Abstract

View articletitled, Control of Rotor Tip Leakage Through Cooling Injection From the Casing in a High-Work Turbine

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Topics: Flow (Dynamics) , Leakage , Rotors , Vortices , Turbines , Cooling , Pressure , Turbulence

Film Cooling Effectiveness Distributions on a Turbine Blade Cascade Platform With Stator-Rotor Purge and Discrete Film Hole Flows

Lesley M. Wright, Sarah A. Blake, Je-Chin Han

J. Turbomach. July 2008, 130(3): 031015. doi: https://doi.org/10.1115/1.2777186

Abstract

View articletitled, Film Cooling Effectiveness Distributions on a Turbine Blade Cascade Platform With Stator-Rotor Purge and Discrete Film Hole Flows

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Topics: Cascades (Fluid dynamics) , Coolants , Film cooling , Flow (Dynamics) , Pressure , Blades , Stators , Rotors , Cooling

Optimized Shroud Design for Axial Turbine Aerodynamic Performance

L. Porreca, A. I. Kalfas, R. S. Abhari

J. Turbomach. July 2008, 130(3): 031016. doi: https://doi.org/10.1115/1.2777187

Abstract

View articletitled, Optimized Shroud Design for Axial Turbine Aerodynamic Performance

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Topics: Blades , Design , Flow (Dynamics) , Geometry , Pressure , Rotors , Stators , Turbines , Vortices , Leakage

Unsteady Flow and Aeroelasticity Behavior of Aeroengine Core Compressors During Rotating Stall and Surge

M. Vahdati, G. Simpson, M. Imregun

J. Turbomach. July 2008, 130(3): 031017. doi: https://doi.org/10.1115/1.2777188

Abstract

View articletitled, Unsteady Flow and Aeroelasticity Behavior of Aeroengine Core Compressors During Rotating Stall and Surge

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Topics: Blades , Compressors , Flow (Dynamics) , Pressure , Rotors , Surges , Unsteady flow , Engines , Annulus , Steady state

Aerodynamic Design, Model Test, and CFD Analysis for a Multistage Axial Helium Compressor

X. Yan, T. Takizuka, K. Kunitomi, H. Itaka, K. Takahashi

J. Turbomach. July 2008, 130(3): 031018. doi: https://doi.org/10.1115/1.2777190

Abstract

View articletitled, Aerodynamic Design, Model Test, and CFD Analysis for a Multistage Axial Helium Compressor

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Topics: Blades , Compressors , Computational fluid dynamics , Design , Flow (Dynamics) , Helium , Reynolds number , Boundary layers , Pressure , Rotors

Transonic Turbine Stage Heat Transfer Investigation in Presence of Strong Shocks

A. de la Loma, G. Paniagua, D. Verrastro, P. Adami

J. Turbomach. July 2008, 130(3): 031019. doi: https://doi.org/10.1115/1.2777193

Abstract

View articletitled, Transonic Turbine Stage Heat Transfer Investigation in Presence of Strong Shocks

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Topics: Blades , Gages , Heat transfer , Pressure , Rotors , Shock (Mechanics) , Stators , Turbines , Boundary layers

A Novel Antivortex Turbine Film-Cooling Hole Concept

James D. Heidmann, Srinath Ekkad

J. Turbomach. July 2008, 130(3): 031020. doi: https://doi.org/10.1115/1.2777194

Abstract

View articletitled, A Novel Antivortex Turbine Film-Cooling Hole Concept

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Topics: Design , Film cooling , Flow (Dynamics) , Turbines , Vorticity , Temperature , Heat transfer coefficients , Density , Coolants , Vortices

Heat/Mass Transfer Characteristics in Angled Ribbed Channels With Various Bleed Ratios and Rotation Numbers

Kyung Min Kim, Suk Hwan Park, Yun Heung Jeon, Dong Hyun Lee, Hyung Hee Cho

J. Turbomach. July 2008, 130(3): 031021. doi: https://doi.org/10.1115/1.2777196

Abstract

View articletitled, Heat/Mass Transfer Characteristics in Angled Ribbed Channels With Various Bleed Ratios and Rotation Numbers

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Topics: Flow (Dynamics) , Heat , Mass transfer , Rotation , Coriolis force , Friction

The Effect of Vane Clocking on the Unsteady Flow Field in a One-and-a-Half Stage Transonic Turbine

O. Schennach, R. Pecnik, B. Paradiso, E. Göttlich, A. Marn, J. Woisetschläger

J. Turbomach. July 2008, 130(3): 031022. doi: https://doi.org/10.1115/1.2777199

Abstract

View articletitled, The Effect of Vane Clocking on the Unsteady Flow Field in a One-and-a-Half Stage Transonic Turbine

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Topics: Blades , Pressure , Rotors , Shock (Mechanics) , Turbines , Wakes , Flow (Dynamics) , Shock waves , Cyber-physical systems , Pressure transducers

Technical Briefs

Heat Transfer and Friction Factor in a Square Channel With One, Two, or Four Inclined Ribbed Walls

Soo Whan Ahn, Ho Keun Kang, Sung Taek Bae, Dae Hee Lee

J. Turbomach. July 2008, 130(3): 034501. doi: https://doi.org/10.1115/1.2775488

Abstract

View articletitled, Heat Transfer and Friction Factor in a Square Channel With One, Two, or Four Inclined Ribbed Walls

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Topics: Friction , Heat transfer , Reynolds number , Turbulence

Research Papers

Calculation of the Time-Averaged Flow in Squirrel-Cage Blowers by Substituting Blades With Equivalent Forces

Clearance Effects on the Onset of Instability in a Centrifugal Compressor

Causes of Acoustic Resonance in a High-Speed Axial Compressor

Internal Cooling Near Trailing Edge of a Gas Turbine Airfoil With Cooling Airflow Through Blockages With Holes

Experimental Flow Structure Investigation of Compound Angled Film Cooling

A Criterion for Axial Compressor Hub-Corner Stall

A Comparison of Cylindrical and Fan-Shaped Film-Cooling Holes on a Vane Endwall at Low and High Freestream Turbulence Levels

Computations of Turbulent Flow and Heat Transfer Through a Three-Dimensional Nonaxisymmetric Blade Passage

Clearance Effects on the Evolution of the Flow in the Vaneless Diffuser of a Centrifugal Compressor at Part Load Condition

Inner Workings of Shrouded and Unshrouded Transonic Fan Blades

Development and Demonstration of a Stability Management System for Gas Turbine Engines

Rapid Prototyping Design Optimization Using Flow Sculpting

Bowl-Type Diffusers for Low Specific-Speed Pumps: An Industrial Application

Control of Rotor Tip Leakage Through Cooling Injection From the Casing in a High-Work Turbine

Film Cooling Effectiveness Distributions on a Turbine Blade Cascade Platform With Stator-Rotor Purge and Discrete Film Hole Flows

Optimized Shroud Design for Axial Turbine Aerodynamic Performance

Unsteady Flow and Aeroelasticity Behavior of Aeroengine Core Compressors During Rotating Stall and Surge

Aerodynamic Design, Model Test, and CFD Analysis for a Multistage Axial Helium Compressor

Transonic Turbine Stage Heat Transfer Investigation in Presence of Strong Shocks

A Novel Antivortex Turbine Film-Cooling Hole Concept

Heat/Mass Transfer Characteristics in Angled Ribbed Channels With Various Bleed Ratios and Rotation Numbers

The Effect of Vane Clocking on the Unsteady Flow Field in a One-and-a-Half Stage Transonic Turbine

Technical Briefs

Heat Transfer and Friction Factor in a Square Channel With One, Two, or Four Inclined Ribbed Walls

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