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Journal Articles

Effects of Localized Non-Gaussian Roughness on High-Pressure Turbine Aerothermal Performance: Convective Heat Transfer, Skin Friction, and the Reynolds’ Analogy

Open Access
Thomas O. Jelly, Massimiliano Nardini, Richard D. Sandberg, Paul Vitt, Greg Sluyter
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2025, 147(5): 051017.
Paper No: TURBO-24-1286
https://doi.org/10.1115/1.4067354
Published Online: December 20, 2024
View Articletitled, Effects of Localized Non-Gaussian Roughness on High-Pressure Turbine Aerothermal Performance: Convective Heat Transfer, Skin Friction, and the Reynolds’ Analogy
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Topics: Drag (Fluid dynamics), Skin friction (Fluid dynamics), Surface roughness, Pressure, Heat transfer, Blades, Suction, Reynolds number
Journal Articles

Experimental Investigation of Additional Loss Associated With Incoming Wakes in Low-Pressure Turbine Cascades

Available to Purchase
Hidekazu Kodama, Ken-ichi Funazaki
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2024, 146(5): 051013.
Paper No: TURBO-23-1274
https://doi.org/10.1115/1.4064318
Published Online: January 16, 2024
View Articletitled, Experimental Investigation of Additional Loss Associated With Incoming Wakes in Low-Pressure Turbine Cascades
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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Reynolds number, Suction, Turbines, Wakes, Unsteady flow, Boundary layers
Journal Articles

Application of a Distributed Element Roughness Model to Additively Manufactured Internal Cooling Channels

Free
Samuel Altland, Xiang I. A. Yang, Karen A. Thole, Robert Kunz, Stephen McClain
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2023, 145(10): 101004.
Paper No: TURBO-22-1365
https://doi.org/10.1115/1.4062838
Published Online: July 28, 2023
View Articletitled, Application of a Distributed Element Roughness Model to Additively Manufactured Internal Cooling Channels
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Topics: Drag (Fluid dynamics), Surface roughness, Stress, Cooling
Journal Articles

Performance Investigation of Airfoils for Axial Flow Fans in Low Solidity Cascades Operating at High Inlet Flow Angles

Available to Purchase
Carlo Cravero, Gabriele Milanese
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2023, 145(3): 031002.
Paper No: TURBO-22-1155
https://doi.org/10.1115/1.4055610
Published Online: October 17, 2022
View Articletitled, Performance Investigation of Airfoils for Axial Flow Fans in Low Solidity Cascades Operating at High Inlet Flow Angles
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Topics: Airfoils, Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Design, Drag (Fluid dynamics), Fans, Computational fluid dynamics
Journal Articles

Profile Loss Reduction of High-Lift Turbine Blades With Rough and Ribbed Surfaces

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Ananth Sivaramakrishnan Malathi, Massimiliano Nardini, Aditya Vaid, Nagabhushana Rao Vadlamani, Richard D. Sandberg
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2023, 145(2): 021001.
Paper No: TURBO-22-1214
https://doi.org/10.1115/1.4055501
Published Online: October 11, 2022
View Articletitled, Profile Loss Reduction of High-Lift Turbine Blades With Rough and Ribbed Surfaces
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Topics: Boundary layers, Flow (Dynamics), Pressure gradient, Suction, Surface roughness, Turbulence, Simulation, Skin friction (Fluid dynamics), Turbine blades, Shapes
Journal Articles

Rapid Estimate of Wind Turbine Energy Loss Due to Blade Leading Edge Delamination Using Artificial Neural Networks

Available to Purchase
M. Sergio Campobasso, Anna Cavazzini, Edmondo Minisci
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2020, 142(7): 071002.
Paper No: TURBO-19-1260
https://doi.org/10.1115/1.4047186
Published Online: June 26, 2020
View Articletitled, Rapid Estimate of Wind Turbine Energy Loss Due to Blade Leading Edge Delamination Using Artificial Neural Networks
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Topics: Airfoils, Blades, Computational fluid dynamics, Damage, Delamination, Geometry, Turbines, Wind turbines, Artificial neural networks, Energy dissipation
Journal Articles

Correlation-Based Riblet Model for Turbomachinery Applications

Available to Purchase
Viktor Koepplin, Florian Herbst, Joerg R. Seume
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. July 2017, 139(7): 071006.
Paper No: TURBO-16-1190
https://doi.org/10.1115/1.4035605
Published Online: February 28, 2017
View Articletitled, Correlation-Based Riblet Model for Turbomachinery Applications
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Topics: Cascades (Fluid dynamics), Drag (Fluid dynamics), Drag reduction, Flat plates, Flow (Dynamics), Pressure gradient, Turbomachinery, Compressors, Design, Boundary layers
Journal Articles

The Limitations of Using “ R a ” to Describe Surface Roughness

Available to Purchase
Martin N. Goodhand, Karl Walton, Liam Blunt, Hang W. Lung, Robert J. Miller, Reg Marsden
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. October 2016, 138(10): 101003.
Paper No: TURBO-15-1210
https://doi.org/10.1115/1.4032280
Published Online: April 26, 2016
View Articletitled, The Limitations of Using “ R a ” to Describe Surface Roughness
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Topics: Surface roughness, Reynolds number, Drag (Fluid dynamics)
Journal Articles

Ultrashort Nacelles for Low Fan Pressure Ratio Propulsors

Available to Purchase
Andreas Peters, Zoltán S. Spakovszky, Wesley K. Lord, Becky Rose
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. February 2015, 137(2): 021001.
Paper No: TURBO-14-1120
https://doi.org/10.1115/1.4028235
Published Online: September 10, 2014
View Articletitled, Ultrashort Nacelles for Low Fan Pressure Ratio Propulsors
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Topics: Design, Flow (Dynamics), Rotors, Pressure, Mach number, Simulation, Drag (Fluid dynamics)
Journal Articles

Drag Management in High Bypass Turbofan Nozzles for Quiet Approach Applications

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P. Shah, A. Robinson, A. Price, Z. Spakovszky
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. February 2014, 136(2): 021009.
Paper No: TURBO-12-1250
https://doi.org/10.1115/1.4023908
Published Online: September 26, 2013
View Articletitled, Drag Management in High Bypass Turbofan Nozzles for Quiet Approach Applications
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Topics: Drag (Fluid dynamics), Flow (Dynamics), Noise (Sound), Nozzles, Swirling flow, Simulation, Engines, Computational fluid dynamics, Aircraft
Journal Articles

Differential Equation Specification of Integral Turbulence Length Scales

Available to Purchase
Richard J. Jefferson-Loveday, Paul G. Tucker, John D. Northall, V. Nagabhushana Rao
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2013, 135(3): 031013.
Paper No: TURBO-12-1030
https://doi.org/10.1115/1.4007479
Published Online: March 25, 2013
View Articletitled, Differential Equation Specification of Integral Turbulence Length Scales
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Topics: Cavities, Differential equations, Flow (Dynamics), Reynolds-averaged Navier–Stokes equations, Turbulence, Wakes, Cylinders, Drag (Fluid dynamics), Errors
Journal Articles

A Novel Turbomachinery Air-Brake Concept for Quiet Aircraft

Available to Purchase
P. N. Shah, D. D. Mobed, Z. S. Spakovszky
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2010, 132(4): 041002.
https://doi.org/10.1115/1.3192145
Published Online: April 26, 2010
View Articletitled, A Novel Turbomachinery Air-Brake Concept for Quiet Aircraft
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Topics: Acoustics, Aircraft, Brakes, Design, Drag (Fluid dynamics), Ducts, Flow (Dynamics), Noise (Sound), Pressure, Swirling flow
Journal Articles

A Comparison of Approximate Versus Exact Geometrical Representations of Roughness for CFD Calculations of c f and St

Available to Purchase
J. P. Bons, S. T. McClain, Z. J. Wang, X. Chi, T. I. Shih
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021024.
https://doi.org/10.1115/1.2752190
Published Online: March 25, 2008
View Articletitled, A Comparison of Approximate Versus Exact Geometrical Representations of Roughness for CFD Calculations of c f and St
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Topics: Reynolds-averaged Navier–Stokes equations, Surface roughness, Discrete element methods, Heat transfer, Flow (Dynamics), Drag (Fluid dynamics), Boundary layers
Journal Articles

Predicting Skin Friction and Heat Transfer for Turbulent Flow Over Real Gas Turbine Surface Roughness Using the Discrete Element Method

Available to Purchase
Stephen T. McClain, Assistant Professor,, B. Keith Hodge, Professor,, Jeffrey P. Bons, Associate Professor,
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. April 2004, 126(2): 259–267.
https://doi.org/10.1115/1.1740779
Published Online: June 15, 2004
View Articletitled, Predicting Skin Friction and Heat Transfer for Turbulent Flow Over Real Gas Turbine Surface Roughness Using the Discrete Element Method
Open the PDF for Predicting Skin Friction and Heat Transfer for Turbulent Flow Over Real Gas Turbine Surface Roughness Using the Discrete Element Method in another window
Topics: Surface roughness, Heat transfer, Skin friction (Fluid dynamics), Drag (Fluid dynamics), Flow (Dynamics)
Journal Articles

A Correlation-Based Transition Model Using Local Variables—Part II: Test Cases and Industrial Applications

Available to Purchase
R. B. Langtry, F. R. Menter, S. R. Likki, Y. B. Suzen, P. G. Huang, S. Völker
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach.
https://doi.org/10.1115/1.2184353
Published Online: March 1, 2004
View Articletitled, A Correlation-Based Transition Model Using Local Variables—Part II: Test Cases and Industrial Applications
Open the PDF for A Correlation-Based Transition Model Using Local Variables—Part II: Test Cases and Industrial Applications in another window
Topics: Blades, Cascades (Fluid dynamics), Compressors, Drag (Fluid dynamics), Flow (Dynamics), Pressure, Reynolds number, Separation (Technology), Turbines, Turbomachinery
Journal Articles

Assessing Viscous Body Forces for Unsteady Calculations

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L. Xu
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2003, 125(3): 425–432.
https://doi.org/10.1115/1.1574823
Published Online: August 27, 2003
View Articletitled, Assessing Viscous Body Forces for Unsteady Calculations
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Topics: Blades, Drag (Fluid dynamics), Flow (Dynamics), Reynolds-averaged Navier–Stokes equations, Turbines, Unsteady flow, Rotors, Modeling
Journal Articles

Effects of Surface Roughness on Heat Transfer and Aerodynamic Performance of Turbine Airfoils

Available to Purchase
N. Abuaf, R. S. Bunker, C. P. Lee
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 1998, 120(3): 522–529.
https://doi.org/10.1115/1.2841749
Published Online: July 1, 1998
View Articletitled, Effects of Surface Roughness on Heat Transfer and Aerodynamic Performance of Turbine Airfoils
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Topics: Airfoils, Heat transfer, Surface roughness, Turbines, Polishing, Engines, Finishes, Heat transfer coefficients, Aerodynamic flow, Cascades (Fluid dynamics)
Journal Articles

Simulation of Heat Transfer From Flow With High Free-Stream Turbulence to Turbine Blades

Available to Purchase
E. Fridman
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 1997, 119(2): 284–291.
https://doi.org/10.1115/1.2841111
Published Online: April 1, 1997
View Articletitled, Simulation of Heat Transfer From Flow With High Free-Stream Turbulence to Turbine Blades
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Topics: Flow (Dynamics), Heat transfer, Simulation, Turbine blades, Turbulence, Heat transfer coefficients, Algebra, Boundary layers, Circular cylinders, Drag (Fluid dynamics)
Journal Articles

Circumferentially Smeared Computed Effects of Rim Seal Clearance on Wheelspace Thermal Distributions

Available to Purchase
S. H. Ko, D. L. Rhode, Z. Guo
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Briefs
J. Turbomach. January 1997, 119(1): 157–159.
https://doi.org/10.1115/1.2841005
Published Online: January 1, 1997
View Articletitled, Circumferentially Smeared Computed Effects of Rim Seal Clearance on Wheelspace Thermal Distributions
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Topics: Clearances (Engineering), Cavities, Flow (Dynamics), Rotors, Blades, Computers, Coolants, Drag (Fluid dynamics), Heat, Heating
Journal Articles

Windage Heating of Air Passing Through Labyrinth Seals

Available to Purchase
J. A. Millward, M. F. Edwards
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 1996, 118(2): 414–419.
https://doi.org/10.1115/1.2836657
Published Online: April 1, 1996
View Articletitled, Windage Heating of Air Passing Through Labyrinth Seals
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Topics: Heating, Cooling, Computational fluid dynamics, Cooling systems, Cycles, Cylinders, Disks, Drag (Fluid dynamics), Flow (Dynamics), Gas turbines