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Proceedings Papers

The Effect of Diffuser Shape for Film Cooling Holes With Constant Expansion Angles and Area Ratio

Evan Lundburg, Stephen Lynch, Kevin Liu, Hongzhou Xu, Michael Fox
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A016, June 13–17, 2022
Paper No: GT2022-81520
DOI: https://doi.org/10.1115/GT2022-81520
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Topics: Diffusers, Film cooling, Shapes, Coolants, Surface roughness, Flow (Dynamics), Cooling, Durability, Gas turbines, High temperature
Proceedings Papers

Printability and Overall Cooling Performance of Additively Manufactured Holes With Inlet and Exit Rounding

Emma M. Veley, Karen A. Thole, Michael T. Furgeson, David G. Bogard
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A043, June 13–17, 2022
Paper No: GT2022-83313
DOI: https://doi.org/10.1115/GT2022-83313
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Topics: Additive manufacturing, Cooling, Design, Film cooling, Surface roughness, Convection, Coolants, Diffusers, Engines, Gas turbines
Proceedings Papers

A Microscale-Based Methodology to Predict the Performance Degradation in Turbomachinery due to Particle Deposition

Riccardo Friso, Nicola Zanini, Alessio Suman, Nicola Casari, Michele Pinelli
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A030, June 13–17, 2022
Paper No: GT2022-82425
DOI: https://doi.org/10.1115/GT2022-82425
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Topics: Microscale devices, Particulate matter, Turbomachinery, Compressors, Surface roughness, Axial flow, Computer simulation, Engineering simulation, Engines, Fluid dynamics
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

Investigation of Gas Turbine Internal Cooling Using Supercritical CO2 – Effect of Surface Roughness and Channel Aspect Ratio

Arnab Roy, Matthew Searle, Sridharan Ramesh, Douglas Straub
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A026, June 13–17, 2022
Paper No: GT2022-83319
DOI: https://doi.org/10.1115/GT2022-83319
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Topics: Cooling, Gas turbines, Supercritical carbon dioxide, Surface roughness, Reynolds number, Additive manufacturing, Computational fluid dynamics, Heat transfer, Flow (Dynamics), Fluids
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 Numerical Investigation on the Influence of Wall Roughness on the Performance of Volutes of Centrifugal Compressors

D. Wolbert, M. Schmitt, S. Koenig, M. Wannek, J. Hartmann
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A014, June 13–17, 2022
Paper No: GT2022-83042
DOI: https://doi.org/10.1115/GT2022-83042
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Topics: Compressors, Sands, Surface roughness
Proceedings Papers

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

Samuel Altland, Xiang Yang, Karen Thole, Robert Kunz, Stephen McClain
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A014, June 13–17, 2022
Paper No: GT2022-81218
DOI: https://doi.org/10.1115/GT2022-81218
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Topics: Additive manufacturing, Computational fluid dynamics, Cooling, Surface roughness
Proceedings Papers

Roughness-Resolved LES of Additive Manufacturing-Like Channel Flows

Serge Meynet, Alexis Barge, Vincent Moureau, Guillaume Balarac, Ghislain Lartigue, Abdellah Hadjadj
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A006, June 13–17, 2022
Paper No: GT2022-80946
DOI: https://doi.org/10.1115/GT2022-80946
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Topics: Channel flow, Manufacturing, Surface roughness, Additive manufacturing, Computer simulation, Databases, Design, Heat exchangers, Heat transfer, Large eddy simulation
Proceedings Papers

Calibration of a CFD Methodology for the Simulation of Additively Manufactured Components Accounting for the Effects of Diameter and Printing Direction on Friction and Heat Transfer

Lorenzo Mazzei, Riccardo Da Soghe, Cosimo Bianchini
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A012, June 13–17, 2022
Paper No: GT2022-82391
DOI: https://doi.org/10.1115/GT2022-82391
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Topics: Accounting, Additive manufacturing, Calibration, Computational fluid dynamics, Cooling, Friction, Gas turbines, Heat transfer, Printing, Simulation
Proceedings Papers

Internal Heat Transfer Measurement on Metal-Based Additively Manufactured Channels Using a Transient Technique

Patrick Lüscher, Marin Deflorin, Manuel Voggesser, Peter Stuber, Vincent Galoul, Minseok Ko
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A004, June 13–17, 2022
Paper No: GT2022-79547
DOI: https://doi.org/10.1115/GT2022-79547
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Topics: Additive manufacturing, Heat transfer, Metals, Transients (Dynamics), Cooling, Surface roughness, Design, Flow (Dynamics), Databases, Friction
Proceedings Papers

Impacts of the Additive Manufacturing Process on the Roughness of Engine Scale Vanes and Cooling Channels

Alexander J. Wildgoose, Karen A. Thole, Ramesh Subramanian, Lisa Kersting, Anand Kulkarni
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A025, June 13–17, 2022
Paper No: GT2022-84063
DOI: https://doi.org/10.1115/GT2022-84063
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Topics: Additive manufacturing, Cooling, Engines, Surface roughness, Wall thickness, Computerized tomography, Design, Flow (Dynamics), Heat transfer, Investment casting (Process)
Proceedings Papers

Effects of Novel Roughened Wall of Swirl Cooling in Gas Turbine on Heat Transfer Characteristics and Pressure Drop

Fifi Elwekeel, Antar Abdala, Qun Zheng
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT15A007, June 13–17, 2022
Paper No: GT2022-79595
DOI: https://doi.org/10.1115/GT2022-79595
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Topics: Cooling, Gas turbines, Heat transfer, Pressure drop, Surface roughness
Proceedings Papers

Numerical Prediction of Surface Roughness Effect on the Performance of Internal Channels

Sandeep, Mahendran Manoharan, Vinayender Kuchana, Jong Liu
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A018, June 13–17, 2022
Paper No: GT2022-82914
DOI: https://doi.org/10.1115/GT2022-82914
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Topics: Computational fluid dynamics, Friction, Heat transfer, Pressure, Surface roughness
Proceedings Papers

Numerical Study of Roughness Effect on Performances in Representative Heat Exchanger Channels

Joseph Jabbour, Damien Serret, Hussein Yassin
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A026, June 13–17, 2022
Paper No: GT2022-84253
DOI: https://doi.org/10.1115/GT2022-84253
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Topics: Heat exchangers, Surface roughness, Heat transfer, Design, Additive manufacturing, Computational fluid dynamics, Computer software, Computer-aided design, Cycles, Fins
Proceedings Papers

Low Cycle Fatigue Characterization of Additive Manufactured Specimen With as Printed Surface Roughness Made From Multiple Nickel Based Super Alloys

Alex Torkaman, Ramesh Keshava Bhattu
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A013, June 13–17, 2022
Paper No: GT2022-82484
DOI: https://doi.org/10.1115/GT2022-82484
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Topics: Additive manufacturing, Alloys, Fractography, Low cycle fatigue, Nickel, Surface roughness
Proceedings Papers

Amplitude and Wavelength Effects for Wavy Channels

Thomas M. Corbett, Karen A. Thole, Sudhakar Bollapragada
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT15A002, June 13–17, 2022
Paper No: GT2022-78356
DOI: https://doi.org/10.1115/GT2022-78356
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Topics: Wavelength, Additive manufacturing, Computational fluid dynamics, Cooling, Design, Computerized tomography, Durability, Engineering simulation, Flow (Dynamics), Friction
Proceedings Papers

Microtomography of Soil and Soot Deposits: Analysis Of Three-Dimensional Structures and Surface Morphology

Alessio Suman, Alessandro Vulpio, Michele Pinelli, Lorenzo D’Amico
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T19A013, June 13–17, 2022
Paper No: GT2022-83070
DOI: https://doi.org/10.1115/GT2022-83070
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Topics: Gas turbines, Soil, Soot, surface morphology, Surface roughness
Proceedings Papers

Impacts of Pin Fin Shape and Spacing on Heat Transfer and Pressure Losses

Thomas M. Corbett, Karen A. Thole, Sudhakar Bollapragada
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT15A022, June 13–17, 2022
Paper No: GT2022-82673
DOI: https://doi.org/10.1115/GT2022-82673
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Topics: Heat transfer, Pressure, Shapes, Surface roughness, Pins (Engineering), Accounting, Additive manufacturing, Computerized tomography, Density, Diamonds