Volume 135 Issue 1 | J. Turbomach. | ASME Digital Collection

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Research Papers

The Effect of Ultrapolish on a Transonic Axial Rotor

William B. Roberts, Scott A. Thorp, Patricia S. Prahst, Anthony J. Strazisar

J. Turbomach. January 2013, 135(1): 011001. doi: https://doi.org/10.1115/1.4006496

Abstract

View articletitled, The Effect of Ultrapolish on a Transonic Axial Rotor

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Topics: Blades , Rotors , Flow (Dynamics) , Design , Finishes , Compressors

Flow Measurements in a First Stage Nozzle Cascade Having Endwall Contouring, Leakage, and Assembly Features

J. D. Piggush, T. W. Simon

J. Turbomach. January 2013, 135(1): 011002. doi: https://doi.org/10.1115/1.4006419

Abstract

View articletitled, Flow Measurements in a First Stage Nozzle Cascade Having Endwall Contouring, Leakage, and Assembly Features

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Topics: Flow (Dynamics) , Leakage , Pressure , Cascades (Fluid dynamics) , Vortices , Nozzles , Boundary layers

An Advanced Multiconfiguration Stator Well Cooling Test Facility

D. D. Coren, N. R. Atkins, J. R. Turner, D. E. Eastwood, S. Davies, P. R. N. Child, J. A. Dixon, T. J. Scanlon

J. Turbomach. January 2013, 135(1): 011003. doi: https://doi.org/10.1115/1.4006317

Abstract

View articletitled, An Advanced Multiconfiguration Stator Well Cooling Test Facility

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Topics: Coolants , Flow (Dynamics) , Stators , Instrumentation , Temperature , Cavities , Cooling , Geometry

Large Eddy Simulations of Film-Cooling Flows With a Micro-Ramp Vortex Generator

Aaron F. Shinn, S. Pratap Vanka

J. Turbomach. January 2013, 135(1): 011004. doi: https://doi.org/10.1115/1.4006329

Abstract

View articletitled, Large Eddy Simulations of Film-Cooling Flows With a Micro-Ramp Vortex Generator

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Topics: Cross-flow , Film cooling , Flow (Dynamics) , Simulation , Vortices , Pipes , Temperature , Inflow , Coolants , Vorticity

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

J. Turbomach. January 2013, 135(1): 011005. doi: https://doi.org/10.1115/1.4006318

Abstract

View articletitled, Experimental and Numerical Investigation of Tip Clearance and Bleed Effects in a Centrifugal Compressor Stage With Pipe Diffuser

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Topics: Clearances (Engineering) , Diffusers , Flow (Dynamics) , Impellers , Computational fluid dynamics , Pipes , Pressure , Compressors

Aerodynamic Performance of a Coolant Flow Off-Take Downstream of an Outlet Guide Vane

C. A’Barrow, J. F. Carrotte, A. D. Walker, A. M. Rolt

J. Turbomach. January 2013, 135(1): 011006. doi: https://doi.org/10.1115/1.4006332

Abstract

View articletitled, Aerodynamic Performance of a Coolant Flow Off-Take Downstream of an Outlet Guide Vane

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Topics: Flow (Dynamics) , Pressure , Design , Compressors

Transition Mechanisms in Laminar Separated Flow Under Simulated Low Pressure Turbine Aerofoil Conditions

Jerrit Dähnert, Christoph Lyko, Dieter Peitsch

J. Turbomach. January 2013, 135(1): 011007. doi: https://doi.org/10.1115/1.4006393

Abstract

View articletitled, Transition Mechanisms in Laminar Separated Flow Under Simulated Low Pressure Turbine Aerofoil Conditions

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Topics: Boundary layers , Bubbles , Flow (Dynamics) , Pressure , Reynolds number , Separation (Technology) , Turbulence , Airfoils , Shear (Mechanics) , Momentum

The Influence of Leading Edge Diameter on Stagnation Region Heat Transfer Augmentation Including Effects of Turbulence Level, Scale, and Reynolds Number

Preethi Gandavarapu, Forrest E. Ames

J. Turbomach. January 2013, 135(1): 011008. doi: https://doi.org/10.1115/1.4006396

Abstract

View articletitled, The Influence of Leading Edge Diameter on Stagnation Region Heat Transfer Augmentation Including Effects of Turbulence Level, Scale, and Reynolds Number

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Topics: Heat transfer , Turbulence , Reynolds number

A Numerical Investigation of Rotating Instability in Steam Turbine Last Stage

L. Y. Zhang, L. He, H. Stüer

J. Turbomach. January 2013, 135(1): 011009. doi: https://doi.org/10.1115/1.4006330

Abstract

View articletitled, A Numerical Investigation of Rotating Instability in Steam Turbine Last Stage

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Topics: Flow (Dynamics) , Rotors , Pressure , Turbines , Blades

Aerodynamics of a Low-Pressure Turbine Airfoil at Low Reynolds Numbers—Part I: Steady Flow Measurements

Ali Mahallati, Brian R. McAuliffe, Steen A. Sjolander, Thomas J. Praisner

J. Turbomach. January 2013, 135(1): 011010. doi: https://doi.org/10.1115/1.4006319

Abstract

View articletitled, Aerodynamics of a Low-Pressure Turbine Airfoil at Low Reynolds Numbers—Part I: Steady Flow Measurements

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Topics: Airfoils , Boundary layers , Cascades (Fluid dynamics) , Flow (Dynamics) , Pressure , Reynolds number , Separation (Technology) , Suction , Turbines , Turbulence

Aerodynamics of a Low-Pressure Turbine Airfoil at Low Reynolds Numbers—Part II: Blade-Wake Interaction

Ali Mahallati, Steen A. Sjolander

J. Turbomach. January 2013, 135(1): 011011. doi: https://doi.org/10.1115/1.4006320

Abstract

View articletitled, Aerodynamics of a Low-Pressure Turbine Airfoil at Low Reynolds Numbers—Part II: Blade-Wake Interaction

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Topics: Airfoils , Blades , Boundary layers , Flow (Dynamics) , Pressure , Reynolds number , Turbulence , Wakes , Turbines , Bubbles

Effect of Wake Flow Nonuniformity on Wind Turbine Performance and Aerodynamics

S. Barber, N. Chokani, R.S. Abhari

J. Turbomach. January 2013, 135(1): 011012. doi: https://doi.org/10.1115/1.4006334

Abstract

View articletitled, Effect of Wake Flow Nonuniformity on Wind Turbine Performance and Aerodynamics

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Topics: Wakes , Wind turbines , Aerodynamics , Turbines , Rotors , Flow (Dynamics)

Optimization Strategy for a Coupled Design of the Last Stage and the Successive Diffuser in a Low Pressure Steam Turbine

Christian Musch, Heinrich Stüer, Georg Hermle

J. Turbomach. January 2013, 135(1): 011013. doi: https://doi.org/10.1115/1.4006335

Abstract

View articletitled, Optimization Strategy for a Coupled Design of the Last Stage and the Successive Diffuser in a Low Pressure Steam Turbine

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Topics: Blades , Boundary layers , Design , Diffusers , Flow (Dynamics) , Optimization , Pressure , Computational fluid dynamics , Steam turbines , Simulation

Natural Frequency Shift in a Centrifugal Compressor Impeller for High-Density Gas Applications

Yohei Magara, Kazuyuki Yamaguchi, Haruo Miura, Naohiko Takahashi, Mitsuhiro Narita

J. Turbomach. January 2013, 135(1): 011014. doi: https://doi.org/10.1115/1.4006423

Abstract

View articletitled, Natural Frequency Shift in a Centrifugal Compressor Impeller for High-Density Gas Applications

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Topics: Density , Impellers , Vibration , Disks , Pressure , Compressor impellers , Compressors , Resonance

Coal Ash Deposition on Nozzle Guide Vanes—Part II: Computational Modeling

B. Barker, B. Casaday, P. Shankara, A. Ameri, J. P. Bons

J. Turbomach. January 2013, 135(1): 011015. doi: https://doi.org/10.1115/1.4006399

Abstract

View articletitled, Coal Ash Deposition on Nozzle Guide Vanes—Part II: Computational Modeling

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Topics: Particulate matter , Viscosity , Flow (Dynamics) , Coal , Temperature

Shock Propagation and MPT Noise From a Transonic Rotor in Nonuniform Flow

Jeffrey J. Defoe, Zoltán S. Spakovszky

J. Turbomach. January 2013, 135(1): 011016. doi: https://doi.org/10.1115/1.4006497

Abstract

View articletitled, Shock Propagation and MPT Noise From a Transonic Rotor in Nonuniform Flow

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Topics: Blades , Ducts , Flow (Dynamics) , Noise (Sound) , Rotors , Shock (Mechanics) , Acoustics , Pressure , Wave propagation , Inflow

Influence of the Different Design Parameters to the Centrifugal Compressor Tip Clearance Loss

Teemu Turunen-Saaresti, Ahti Jaatinen

J. Turbomach. January 2013, 135(1): 011017. doi: https://doi.org/10.1115/1.4006388

Abstract

View articletitled, Influence of the Different Design Parameters to the Centrifugal Compressor Tip Clearance Loss

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Topics: Clearances (Engineering) , Compressors , Pressure , Blades , Design

Impact of Severe Temperature Distortion on Turbine Efficiency

Paul F. Beard, Andy Smith, Thomas Povey

J. Turbomach. January 2013, 135(1): 011018. doi: https://doi.org/10.1115/1.4006389

Abstract

View articletitled, Impact of Severe Temperature Distortion on Turbine Efficiency

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Topics: Flow (Dynamics) , Rotors , Temperature , Turbines , Pressure

Identifying Turbulent Spots in Transitional Boundary Layers

Brendan Rehill, Ed J. Walsh, Luca Brandt, Philipp Schlatter, Tamer A. Zaki, Donald M. McEligot

J. Turbomach. January 2013, 135(1): 011019. doi: https://doi.org/10.1115/1.4006395

Abstract

View articletitled, Identifying Turbulent Spots in Transitional Boundary Layers

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Topics: Boundary layers , Flow (Dynamics) , Turbulence , Energy dissipation , Vortices

Wall Shear Stress Measurements on a Highly Loaded Compressor Cascade

Vincent Zander, Christoph Dobriloff, Mathias Lumpe, Wolfgang Nitsche

J. Turbomach. January 2013, 135(1): 011020. doi: https://doi.org/10.1115/1.4006333

Abstract

View articletitled, Wall Shear Stress Measurements on a Highly Loaded Compressor Cascade

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Topics: Blades , Cascades (Fluid dynamics) , Compressors , Flow (Dynamics) , Sensors , Shear stress , Computer simulation , Flow visualization , Wire , Suction

Evaluation of CFD Predictions Using Thermal Field Measurements on a Simulated Film Cooled Turbine Blade Leading Edge

Sibi Mathew, Silvia Ravelli, David G. Bogard

J. Turbomach. January 2013, 135(1): 011021. doi: https://doi.org/10.1115/1.4006397

Abstract

View articletitled, Evaluation of CFD Predictions Using Thermal Field Measurements on a Simulated Film Cooled Turbine Blade Leading Edge

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Topics: Computational fluid dynamics , Coolants , Flow (Dynamics) , Simulation , Temperature , Turbine blades , Turbulence , Separation (Technology) , Film cooling , Engineering simulation

Use of an Immersed Mesh for High Resolution Modeling of Film Cooling Flows

B. Lad, L. He

J. Turbomach. January 2013, 135(1): 011022. doi: https://doi.org/10.1115/1.4006398

Abstract

View articletitled, Use of an Immersed Mesh for High Resolution Modeling of Film Cooling Flows

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Topics: Cooling , Film cooling , Flow (Dynamics) , Nozzle guide vanes , Flat plates , Geometry , Resolution (Optics) , Airfoils , Modeling

Effect of Tip Clearance on the Prediction of Nonsynchronous Vibrations in Axial Compressors

Martin Drolet, Huu Duc Vo, Njuki W. Mureithi

J. Turbomach. January 2013, 135(1): 011023. doi: https://doi.org/10.1115/1.4006401

Abstract

View articletitled, Effect of Tip Clearance on the Prediction of Nonsynchronous Vibrations in Axial Compressors

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Topics: Blades , Clearances (Engineering) , Flow (Dynamics) , Geometry , Compressors , Convection , Vibration , Temperature , Rotors , Chords (Trusses)

Experimental Comparison of DBD Plasma Actuators for Low Reynolds Number Separation Control

Christopher R. Marks, Rolf Sondergaard, Mitch Wolff, Rich Anthony

J. Turbomach. January 2013, 135(1): 011024. doi: https://doi.org/10.1115/1.4006517

Abstract

View articletitled, Experimental Comparison of DBD Plasma Actuators for Low Reynolds Number Separation Control

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Topics: Actuators , Plasmas (Ionized gases) , Separation (Technology) , Reynolds number , Flow (Dynamics)

An Investigation of Stall Inception in Centrifugal Compressor Vaned Diffuser¹

Jonathan N. Everitt, Zoltán S. Spakovszky

J. Turbomach. January 2013, 135(1): 011025. doi: https://doi.org/10.1115/1.4006533

Abstract

View articletitled, An Investigation of Stall Inception in Centrifugal Compressor Vaned Diffuser<sup>1</sup>

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Topics: Compressors , Design , Diffusers , Flow (Dynamics) , Stall inception , Pressure , Simulation , Wavelength , Impellers

Experimental and Numerical Investigation of Flow Field and Downstream Surface Temperatures of Cylindrical and Diffuser Shaped Film Cooling Holes¹

Tilman auf dem Kampe, Stefan Völker, Torsten Sämel, Christian Heneka, Helge Ladisch, Achmed Schulz, Hans-Jörg Bauer

J. Turbomach. January 2013, 135(1): 011026. doi: https://doi.org/10.1115/1.4006336

Abstract

View articletitled, Experimental and Numerical Investigation of Flow Field and Downstream Surface Temperatures of Cylindrical and Diffuser Shaped Film Cooling Holes<sup>1</sup>

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Topics: Computational fluid dynamics , Coolants , Cooling , Diffusers , Film cooling , Flow (Dynamics) , Temperature , Turbulence

Validation and Analysis of Numerical Results for a Two-Pass Trapezoidal Channel With Different Cooling Configurations of Trailing Edge

Waseem Siddique, Lamyaa El-Gabry, Igor V. Shevchuk, Torsten H. Fransson

J. Turbomach. January 2013, 135(1): 011027. doi: https://doi.org/10.1115/1.4006534

Abstract

View articletitled, Validation and Analysis of Numerical Results for a Two-Pass Trapezoidal Channel With Different Cooling Configurations of Trailing Edge

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Topics: Cooling , Flow (Dynamics) , Heat transfer , Pressure drop , Reynolds number

Heat Transfer Enhancement in a Rectangular (AR = 3:1) Channel With V-Shaped Dimples

C. Neil Jordan, Lesley M. Wright

J. Turbomach. January 2013, 135(1): 011028. doi: https://doi.org/10.1115/1.4006422

Abstract

View articletitled, Heat Transfer Enhancement in a Rectangular (AR = 3:1) Channel With V-Shaped Dimples

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Topics: Heat transfer , Reynolds number , Temperature , Transients (Dynamics) , Heat transfer coefficients , Liquid crystals , Flow (Dynamics)

Tip-Leakage Losses in Subsonic and Transonic Blade Rows

Andrew P. S. Wheeler, Theodosios Korakianitis, Shashimal Banneheke

J. Turbomach. January 2013, 135(1): 011029. doi: https://doi.org/10.1115/1.4006424

Abstract

View articletitled, Tip-Leakage Losses in Subsonic and Transonic Blade Rows

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Topics: Blades , Flow (Dynamics) , Leakage , Mach number , Pressure

Film-Cooled Trailing Edge Measurements: 3D Velocity and Scalar Field

Michael Benson, Gregory Laskowski, Chris Elkins, John K. Eaton

J. Turbomach. January 2013, 135(1): 011030. doi: https://doi.org/10.1115/1.4006425

Abstract

View articletitled, Film-Cooled Trailing Edge Measurements: 3D Velocity and Scalar Field

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Topics: Airfoils , Computational fluid dynamics , Coolants , Cooling , Film cooling , Flow (Dynamics) , Magnetic resonance imaging , Pressure , Scalar field theory , Turbulence

Application of Endwall Contouring to Transonic Turbine Cascades: Experimental Measurements at Design Conditions

Farzad Taremi, Steen A. Sjolander, Thomas J. Praisner

J. Turbomach. January 2013, 135(1): 011031. doi: https://doi.org/10.1115/1.4006565

Abstract

View articletitled, Application of Endwall Contouring to Transonic Turbine Cascades: Experimental Measurements at Design Conditions

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Topics: Blades , Flow (Dynamics) , Pressure , Turbines , Design , Vortices , Boundary layers , Energy dissipation , Cascades (Fluid dynamics) , Flow visualization

Prediction of Turbomachinery Aeroelastic Behavior From a Set of Representative Modes

María A. Mayorca, Damian M. Vogt, Hans Mårtensson, Torsten H. Fransson

J. Turbomach. January 2013, 135(1): 011032. doi: https://doi.org/10.1115/1.4006536

Abstract

View articletitled, Prediction of Turbomachinery Aeroelastic Behavior From a Set of Representative Modes

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Topics: Blades , Computational fluid dynamics , Damping , Mode shapes , Stability , Oscillations , Turbomachinery , Stiffness

Stall Warning by Blade Pressure Signature Analysis

Anna Young, Ivor Day, Graham Pullan

J. Turbomach. January 2013, 135(1): 011033. doi: https://doi.org/10.1115/1.4006426

Abstract

View articletitled, Stall Warning by Blade Pressure Signature Analysis

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

Detailed Heat Transfer Distributions in Engine Similar Cooling Channels for a Turbine Rotor Blade With Different Rib Orientations

Christopher LeBlanc, Srinath V. Ekkad, Tony Lambert, Veera Rajendran

J. Turbomach. January 2013, 135(1): 011034. doi: https://doi.org/10.1115/1.4006387

Abstract

View articletitled, Detailed Heat Transfer Distributions in Engine Similar Cooling Channels for a Turbine Rotor Blade With Different Rib Orientations

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Topics: Blades , Cooling , Engines , Flow (Dynamics) , Heat transfer , Pressure drop , Reynolds number , Rotors , Geometry , Turbines

Integrated Outlet Guide Vane Design for an Aggressive S-Shaped Compressor Transition Duct

A. D. Walker, A. G. Barker, J. F. Carrotte, J. J. Bolger, M. J. Green

J. Turbomach. January 2013, 135(1): 011035. doi: https://doi.org/10.1115/1.4006331

Abstract

View articletitled, Integrated Outlet Guide Vane Design for an Aggressive S-Shaped Compressor Transition Duct

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Topics: Compressors , Design , Ducts , Flow (Dynamics) , Pressure , Rotors

Optimal Application of Riblets on Compressor Blades and Their Contamination Behavior

Christoph Lietmeyer, Karsten Oehlert, Joerg R. Seume

J. Turbomach. January 2013, 135(1): 011036. doi: https://doi.org/10.1115/1.4006518

Abstract

View articletitled, Optimal Application of Riblets on Compressor Blades and Their Contamination Behavior

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Topics: Blades , Compressors , Contamination , Flow (Dynamics) , Pressure , Suction , Cascades (Fluid dynamics) , Dust , Lasers , Geometry

Experimental/Numerical Crossover Jet Impingement in an Airfoil Leading-Edge Cooling Channel

K. Elebiary, M. E. Taslim

J. Turbomach. January 2013, 135(1): 011037. doi: https://doi.org/10.1115/1.4006420

Abstract

View articletitled, Experimental/Numerical Crossover Jet Impingement in an Airfoil Leading-Edge Cooling Channel

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Topics: Flow (Dynamics) , Airfoils , Cooling , Heat transfer , Computational fluid dynamics

Transition Modeling for Vortex Generating Jets on Low-Pressure Turbine Profiles

Florian Herbst, Dragan Kožulović, Joerg R. Seume

J. Turbomach. January 2013, 135(1): 011038. doi: https://doi.org/10.1115/1.4006421

Abstract

View articletitled, Transition Modeling for Vortex Generating Jets on Low-Pressure Turbine Profiles

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Topics: Boundary layers , Jets , Modeling , Pressure , Separation (Technology) , Turbines , Turbulence , Vortices , Design , Suction

The Effects of Radially Distorted Incident Flow on Performance of Axial-Flow Fans With Forward-Skewed Blades

B. Yang, Ch. G. Gu

J. Turbomach. January 2013, 135(1): 011039. doi: https://doi.org/10.1115/1.4006535

Abstract

View articletitled, The Effects of Radially Distorted Incident Flow on Performance of Axial-Flow Fans With Forward-Skewed Blades

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Topics: Blades , Design , Fans , Flow (Dynamics) , Axial flow

The Whole Annulus Computations of Particulate Flow and Erosion in an Axial Fan

Hong Yang, Joan Boulanger

J. Turbomach. January 2013, 135(1): 011040. doi: https://doi.org/10.1115/1.4006564

Abstract

View articletitled, The Whole Annulus Computations of Particulate Flow and Erosion in an Axial Fan

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Topics: Annulus , Blades , Erosion , Flow (Dynamics) , Particulate matter , Simulation , Computation , Rotors , Computational fluid dynamics

Aerothermal Performance of a Cooled Winglet at Engine Representative Mach and Reynolds Numbers

D. O. O’Dowd, Q. Zhang, L. He, B. C. Y. Cheong, I. Tibbott

J. Turbomach. January 2013, 135(1): 011041. doi: https://doi.org/10.1115/1.4006537

Abstract

View articletitled, Aerothermal Performance of a Cooled Winglet at Engine Representative Mach and Reynolds Numbers

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Topics: Blades , Clearances (Engineering) , Coolants , Cooling , Engines , Film cooling , Flow (Dynamics) , Heat transfer , Pressure , Mach number

Comparison Between the Steady Performance of Double-Entry and Twin-Entry Turbocharger Turbines

Alessandro Romagnoli, Colin D. Copeland, Ricardo Martinez-Botas, Martin Seiler, Srithar Rajoo, Aaron Costall

J. Turbomach. January 2013, 135(1): 011042. doi: https://doi.org/10.1115/1.4006566

Abstract

View articletitled, Comparison Between the Steady Performance of Double-Entry and Twin-Entry Turbocharger Turbines

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Topics: Flow (Dynamics) , Turbines

Film Cooling on Highly Loaded Blades With Main Flow Separation—Part I: Heat Transfer

Reinaldo A. Gomes, Reinhard Niehuis

J. Turbomach. January 2013, 135(1): 011043. doi: https://doi.org/10.1115/1.4006568

Abstract

View articletitled, Film Cooling on Highly Loaded Blades With Main Flow Separation—Part I: Heat Transfer

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Topics: Blades , Film cooling , Flow (Dynamics) , Flow separation , Heat transfer , Pressure , Separation (Technology) , Turbulence , Cascades (Fluid dynamics) , Bubbles