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Proceedings Papers

Transition Model Extension for Roughness Effects

Dragan Kožulović, Nemo Juchmann, Alexander Führing, Christoph Bode

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A042, June 13–17, 2022

Paper No: GT2022-83277

DOI: https://doi.org/10.1115/GT2022-83277

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Topics: Surface roughness, Turbulence, Airfoils, Boundary layer turbulence, Boundary layers, Boundary-value problems, Computational fluid dynamics, Computer software, Energy dissipation, Flow (Dynamics)

Proceedings Papers

The Modelling of Roughness Effect on the Performance of a Controlled Diffusion Airfoil

Grégory Delvaux, Riccardo Toracchio, Elissavet Boufidi, Emma Croner, Fabrizio Fontaneto

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A005, June 13–17, 2022

Paper No: GT2022-79522

DOI: https://doi.org/10.1115/GT2022-79522

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Topics: Airfoils, Diffusion (Physics), Modeling, Surface roughness, Boundary layer turbulence, Blades, Finishes, Flow (Dynamics), Mach number, Manufacturing

Proceedings Papers

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

S. M. Ananth, Massimiliano Nardini, Aditya Vaid, Richard D. Sandberg, Nagabhushana Rao Vadlamani

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A026, June 13–17, 2022

Paper No: GT2022-82558

DOI: https://doi.org/10.1115/GT2022-82558

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Topics: Surface roughness, Turbine blades, Blades, Turbulence, Boundary layers, Pressure gradient, Separation (Technology), Suction, Boundary layer turbulence, Bubbles

Proceedings Papers

A Framework for Estimating Effects of Combustor Turbulence on Turbine Profile Loss Generation

Kanika Gakhar, Masha Folk, Edward M. Greitzer, Choon S. Tan

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A006, June 13–17, 2022

Paper No: GT2022-80607

DOI: https://doi.org/10.1115/GT2022-80607

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Topics: Combustion chambers, Turbines, Turbulence, High pressure (Physics), Energy dissipation, Aircraft engines, Boundary layer turbulence, Boundary layers, Gas turbines, Gates (Closures)

Proceedings Papers

Design Sensitivity of a 1-1/2 Stage Unshrouded High Work Turbine Using Very-Large Eddy Simulations

Ignacio Gonzalez-Martino

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A034, June 13–17, 2022

Paper No: GT2022-84281

DOI: https://doi.org/10.1115/GT2022-84281

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Topics: Design, Eddies (Fluid dynamics), Simulation, Turbines, Blades, Pressure, Rotors, Boundary layer turbulence, Computer simulation, Flow (Dynamics)

Proceedings Papers

Accurate Prediction of Confined Turbulent Boundary Layer Flashback Through a Critically Strained Flame Model

Alex G. Novoselov, Dominik Ebi, Nicolas Noiray

Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A023, June 13–17, 2022

Paper No: GT2022-82506

DOI: https://doi.org/10.1115/GT2022-82506

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Topics: Boundary layer turbulence, Flames, Hydrogen, Swirling flow, Boundary layers, Gas turbines, Carbon, Combustion, Design, Dynamics (Mechanics)

Proceedings Papers

A Rapid Viscous-Inviscid Interaction Method for the Preliminary Design of S-Shaped Transition Ducts

A. Veyrat, J. F. Carrotte, A. D. Walker, C. Hall, H. Simpson

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A026, June 7–11, 2021

Paper No: GT2021-59515

DOI: https://doi.org/10.1115/GT2021-59515

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Topics: Composite materials, Design, Ducts, Flow (Dynamics), Separation (Technology), Splines, Computational fluid dynamics, Shear stress, Boundary layer turbulence, Compressors

Proceedings Papers

The Influence of Element Thermal Conductivity, Shape, and Density on Heat Transfer in a Rough Wall Turbulent Boundary Layer With Strong Pressure Gradients

Christoph Gramespacher, Holger Albiez, Mattias Stripf, Hans-Jörg Bauer

Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A025, September 21–25, 2020

Paper No: GT2020-15933

DOI: https://doi.org/10.1115/GT2020-15933

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Topics: Boundary layer turbulence, Density, Heat transfer, Pressure gradient, Shapes, Surface roughness, Thermal conductivity, Pressure, Additive manufacturing, Boundary layers

Proceedings Papers

Adaptive Detached Eddy Simulation of End-Wall Flow in a Linear Compressor Cascade

Zifei Yin

Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A010, September 21–25, 2020

Paper No: GT2020-14526

DOI: https://doi.org/10.1115/GT2020-14526

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Topics: Cascades (Fluid dynamics), Compressors, Eddies (Fluid dynamics), Flow (Dynamics), Simulation, Viscosity, Pressure, Blades, Boundary layer turbulence, Corners (Structural elements)

Proceedings Papers

Towards Quantitative Wall Shear Stress Measurements: Calibration of Liquid Crystals

Stefanos Melekidis, Maximilian Elfner, Hans-Jörg Bauer

Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T05A005, September 21–25, 2020

Paper No: GT2020-14381

DOI: https://doi.org/10.1115/GT2020-14381

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Topics: Calibration, Liquid crystals, Shear stress, Flow (Dynamics), Probes, Boundary layer turbulence, Boundary-value problems, Drag reduction, Flat plates, Flow control

Proceedings Papers

High-Fidelity Simulations of a High-Pressure Turbine Vane Subject to Large Disturbances: Effect of Exit Mach Number on Losses

Yaomin Zhao, Richard D. Sandberg

Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT33A007, September 21–25, 2020

Paper No: GT2020-14445

DOI: https://doi.org/10.1115/GT2020-14445

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Topics: Engineering simulation, High pressure (Physics), Mach number, Simulation, Turbines, Blades, Turbulence, Boundary layers, Flow (Dynamics), Shock (Mechanics)

Proceedings Papers

The Impact of Combustor Turbulence on Turbine Loss Mechanisms

Masha Folk, Robert J. Miller, John D. Coull

Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT40A002, June 17–21, 2019

Paper No: GT2019-90307

DOI: https://doi.org/10.1115/GT2019-90307

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Topics: Combustion chambers, Turbines, Turbulence, Blades, Cascades (Fluid dynamics), Anisotropy, Boundary layer turbulence, Boundary layers, Chords (Trusses), Cross-flow

Proceedings Papers

On the Importance of Transition Control at Transonic Compressor Blades

A. Hergt, J. Klinner, S. Grund, C. Willert, W. Steinert, M. Beversdorff

Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT39A009, June 17–21, 2019

Paper No: GT2019-90440

DOI: https://doi.org/10.1115/GT2019-90440

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Topics: Blades, Compressors, Shock waves, Cascades (Fluid dynamics), Flow (Dynamics), Oscillations, Boundary layers, Shock (Mechanics), Air jets, Boundary layer turbulence

Proceedings Papers

Direct Experimental Measurements of Heat Transfer Coefficient Augmentation due to Approach Flow Effects

Joshua B. Anderson, David G. Bogard, Thomas E. Dyson, Zachary Webster

Proc. ASME. GT2018, Volume 5C: Heat Transfer, V05CT19A036, June 11–15, 2018

Paper No: GT2018-77170

DOI: https://doi.org/10.1115/GT2018-77170

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Topics: Flow (Dynamics), Heat transfer coefficients, Film cooling, Boundary layers, Heat flux, Boundary layer turbulence, Coolants, Density, Design, Engines

Proceedings Papers

Large-Eddy Simulation of Corner Separation in a Compressor Cascade

Byung-Young Min, Jongwook Joo, Jomar Mendoza, Jin Lee, Guoping Xia, Gorazd Medic

Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A052, June 11–15, 2018

Paper No: GT2018-77144

DOI: https://doi.org/10.1115/GT2018-77144

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Topics: Cascades (Fluid dynamics), Compressors, Corners (Structural elements), Large eddy simulation, Separation (Technology), Engineering simulation, Simulation, Boundary layers, Computation, Fluctuations (Physics)

Proceedings Papers

Large Eddy Simulations of a Low-Pressure Turbine: Roughness Modeling and the Effects on Boundary Layer Transition and Losses

F. Hammer, Neil D. Sandham, Richard D. Sandberg

Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT41A014, June 11–15, 2018

Paper No: GT2018-75796

DOI: https://doi.org/10.1115/GT2018-75796

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Topics: Boundary layers, Large eddy simulation, Modeling, Pressure, Surface roughness, Turbines, Boundary layer turbulence, Flow (Dynamics), Blades, Cascades (Fluid dynamics)

Proceedings Papers

Freestream Flow Effects on Film Effectiveness and Heat Transfer Coefficient Augmentation for Compound Angle Shaped Holes

Joshua B. Anderson, John W. McClintic, David G. Bogard, Thomas E. Dyson, Zachary Webster

Proc. ASME. GT2017, Volume 5C: Heat Transfer, V05CT19A027, June 26–30, 2017

Paper No: GT2017-64853

DOI: https://doi.org/10.1115/GT2017-64853

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Topics: Flow (Dynamics), Heat transfer coefficients, Boundary layers, Film cooling, Turbulence, Boundary layer turbulence, Cooling, Density, Design, Gas turbines

Proceedings Papers

Aeroacoustic Analysis of Low-Speed Axial Fans With Different Rotational Speeds in the Design Point

Patrick Buchwald, Damian M. Vogt, Julien Grilliat, Wolfgang Laufer, Michael B. Schmitz, Andreas Lucius, Marc Schneider

Proc. ASME. GT2017, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Honors and Awards, V001T09A010, June 26–30, 2017

Paper No: GT2017-64417

DOI: https://doi.org/10.1115/GT2017-64417

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Topics: Design, Fans, Noise (Sound), Blades, Pressure, Acoustics, Emissions, Spin (Aerodynamics), Spinning (Textile), Flow separation

Proceedings Papers

A 3D Shape Design and Optimization Method for Natural Laminar Flow Nacelle

Yongjian Zhong, Songyang Li

Proc. ASME. GT2017, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Honors and Awards, V001T01A024, June 26–30, 2017

Paper No: GT2017-64379

DOI: https://doi.org/10.1115/GT2017-64379

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Topics: Laminar flow, Optimization, Shape design, Drag (Fluid dynamics), Shapes, Generators, Boundary layers, Design, Engines, Friction

Proceedings Papers

Vane Suction Surface Heat Transfer in Regions of Secondary Flows: The Influence of Turbulence Level, Reynolds Number and the Endwall Boundary Condition

J. Varty, L. W. Soma, F. E. Ames, S. Acharya

Proc. ASME. GT2017, Volume 5A: Heat Transfer, V05AT13A010, June 26–30, 2017

Paper No: GT2017-65037

DOI: https://doi.org/10.1115/GT2017-65037

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Topics: Boundary-value problems, Flow (Dynamics), Heat transfer, Reynolds number, Suction, Turbulence, Heating, Thermal boundary layers, Vortices, Boundary layer turbulence

2 3 4 5

NARROW

Transition Model Extension for Roughness Effects

The Modelling of Roughness Effect on the Performance of a Controlled Diffusion Airfoil

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

A Framework for Estimating Effects of Combustor Turbulence on Turbine Profile Loss Generation

Design Sensitivity of a 1-1/2 Stage Unshrouded High Work Turbine Using Very-Large Eddy Simulations

Accurate Prediction of Confined Turbulent Boundary Layer Flashback Through a Critically Strained Flame Model

A Rapid Viscous-Inviscid Interaction Method for the Preliminary Design of S-Shaped Transition Ducts

The Influence of Element Thermal Conductivity, Shape, and Density on Heat Transfer in a Rough Wall Turbulent Boundary Layer With Strong Pressure Gradients

Adaptive Detached Eddy Simulation of End-Wall Flow in a Linear Compressor Cascade

Towards Quantitative Wall Shear Stress Measurements: Calibration of Liquid Crystals

High-Fidelity Simulations of a High-Pressure Turbine Vane Subject to Large Disturbances: Effect of Exit Mach Number on Losses

The Impact of Combustor Turbulence on Turbine Loss Mechanisms

On the Importance of Transition Control at Transonic Compressor Blades

Direct Experimental Measurements of Heat Transfer Coefficient Augmentation due to Approach Flow Effects

Large-Eddy Simulation of Corner Separation in a Compressor Cascade

Large Eddy Simulations of a Low-Pressure Turbine: Roughness Modeling and the Effects on Boundary Layer Transition and Losses

Freestream Flow Effects on Film Effectiveness and Heat Transfer Coefficient Augmentation for Compound Angle Shaped Holes

Aeroacoustic Analysis of Low-Speed Axial Fans With Different Rotational Speeds in the Design Point

A 3D Shape Design and Optimization Method for Natural Laminar Flow Nacelle

Vane Suction Surface Heat Transfer in Regions of Secondary Flows: The Influence of Turbulence Level, Reynolds Number and the Endwall Boundary Condition

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