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Proceedings Papers

Film Cooling Hole Shape Effects on Turbine Blade Heat Transfer – Part I: Computational Comparison to Experiment

Spencer Sperling, Louis Christensen, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol

Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A002, June 13–17, 2022

Paper No: GT2022-78244

DOI: https://doi.org/10.1115/GT2022-78244

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Topics: Film cooling, Heat transfer, Shapes, Turbine blades, Blades, Cooling, Pressure, Simulation, Turbines, Computation

Proceedings Papers

Film Cooling Hole Shape Effects on Turbine Blade Heat Transfer – Part II: Effects of Mass Flow Rate and Unsteadiness

Spencer Sperling, Louis Christensen, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol

Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A003, June 13–17, 2022

Paper No: GT2022-78245

DOI: https://doi.org/10.1115/GT2022-78245

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Topics: Film cooling, Flow (Dynamics), Heat transfer, Shapes, Turbine blades, Cooling, Coolants, Pressure, Turbines, Blades

Proceedings Papers

Experimental Evaluation of a Wavy Trailing Edge Cooling Design as an Alternative to Pressure Side Cutback Cooling

Izhar Ullah, Timothy A. Burdett, Lesley M. Wright, Je-Chin Han, Ching-Pang Lee

Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A004, June 13–17, 2022

Paper No: GT2022-78286

DOI: https://doi.org/10.1115/GT2022-78286

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Topics: Cooling, Design, Film cooling, Pressure, Blades, Coolants, Cascades (Fluid dynamics), Suction, Density, Flow (Dynamics)

Proceedings Papers

Free-Stream Turbulence Induced Boundary-Layer Transition in Low-Pressure Turbines

Luca De Vincentiis, Kristina Ðurović, Davide Lengani, Daniele Simoni, Jan Pralits, Dan S. Henningson, Ardeshir Hanifi

Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A015, June 13–17, 2022

Paper No: GT2022-82103

DOI: https://doi.org/10.1115/GT2022-82103

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Topics: Boundary layers, Pressure, Turbines, Turbulence, Wakes, Blades, Fluctuations (Physics), Rotors, Turbine blades, Boundary-value problems

Proceedings Papers

Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section Part I: Effect of Inflow Disturbances

Christoph Bode, Pawel J. Przytarski, John Leggett, Richard D. Sandberg

Paper No: GT2022-81673

DOI: https://doi.org/10.1115/GT2022-81673

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Topics: Compressors, Inflow, Large eddy simulation, Shock (Mechanics), Boundary layers, Rotors, Suction, Flow (Dynamics), Stators, Turbulence

Proceedings Papers

Design Optimization of Blade Tip in Subsonic and Transonic Turbine Stages - Part II: Flow Physics and Augmented Aerothermal Integral Objective Function

Penghao Duan, Li He

Paper No: GT2022-83467

DOI: https://doi.org/10.1115/GT2022-83467

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Topics: Blades, Design, Flow (Dynamics), Optimization, Physics, Turbines, Cavities, Heat transfer, Vortices, Platform supply vessels

Proceedings Papers

Investigation on Strain and Stress Principal Axes in Unsteady DNS Turbine Data

D. Lengani, D. Simoni, L. De Vincentiis, K. Ðurović, J. Pralits, D. S. Henningson, A. Hanifi

Paper No: GT2022-83197

DOI: https://doi.org/10.1115/GT2022-83197

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Topics: Stress, Turbines, Turbulence, Tensors, Eigenvalues, Blades, Boundary layers, Reynolds stress, Suction, Cascades (Fluid dynamics)

Proceedings Papers

High-Fidelity Simulation Study of the Unsteady Flow Effects on High-Pressure Turbine Blade Performance

John Leggett, Yaomin Zhao, Richard D. Sandberg

Paper No: GT2022-82370

DOI: https://doi.org/10.1115/GT2022-82370

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Topics: High pressure (Physics), Simulation, Turbine blades, Unsteady flow, Turbulence, Blades, Rotors, Wakes, Boundary layers, Flow (Dynamics)

Proceedings Papers

Stall Margin Improvement in a Transonic Compressor With a Casing Treatment: Flow Mechanism

Chunill Hah

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A039, June 13–17, 2022

Paper No: GT2022-83363

DOI: https://doi.org/10.1115/GT2022-83363

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Topics: Compressors, Flow (Dynamics), Leakage flows, Collisions (Physics), Design, Blades, Delays, Fluids, Large eddy simulation, Leakage

Proceedings Papers

Unsteady Structure of Compressor Tip Leakage Flows

Joshua M. Maynard, Andrew P. S. Wheeler, James V. Taylor, Roger Wells

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A003, June 13–17, 2022

Paper No: GT2022-78371

DOI: https://doi.org/10.1115/GT2022-78371

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Topics: Compressors, Leakage flows, Flow (Dynamics), Blades, Corners (Structural elements), Engineering simulation, Simulation, Turbulence, Unsteady flow, Bubbles

Proceedings Papers

Numerical Investigation of Unsteady Inlet Guide Vane-Rotor Interactions in a Transonic Fan Due to Boundary Layer Ingestion

Ritangshu Giri, Mark G. Turner

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A017, June 13–17, 2022

Paper No: GT2022-81878

DOI: https://doi.org/10.1115/GT2022-81878

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Topics: Boundary layers, Rotors, Inlet guide vanes, Blades, High cycle fatigue, Pressure, Shock (Mechanics), Shock waves, Vortices, Wakes

Proceedings Papers

Effects of Bleed Slot Size on the Shock-Wave/Boundary-Layer Interactions in a Transonic Compressor Stator

Bai Li, Xun Zhou, Lei Luo, Wei Du

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A006, June 13–17, 2022

Paper No: GT2022-80083

DOI: https://doi.org/10.1115/GT2022-80083

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Topics: Boundary layers, Compressors, Flow (Dynamics), Shock waves, Stators, Suction

Proceedings Papers

Effects of Ribbed Surfaces on Profile Losses of Low-Pressure-Turbine Blades

M. Dellacasagrande, D. Lengani, D. Simoni, M. Ubaldi, F. Bertini

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A029, June 13–17, 2022

Paper No: GT2022-82875

DOI: https://doi.org/10.1115/GT2022-82875

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Topics: Blades, Pressure, Turbines, Cascades (Fluid dynamics), Flat plates, Boundary layers, Dimensions, Geometry, Inflow, Pressure gradient

Proceedings Papers

Vortical Structures and Loss Mechanism of Tip Leakage Flow In Subsonic and Transonic Turbine Stages

P. H. Duan, L. He

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A032, June 13–17, 2022

Paper No: GT2022-83473

DOI: https://doi.org/10.1115/GT2022-83473

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Topics: Leakage flows, Turbines, Flow (Dynamics), Cavities, Vortices, Leakage, Platform supply vessels, Pressure, Cascades (Fluid dynamics), Heat transfer

Proceedings Papers

Investigation of the Interaction Between Tip Leakage and Main Annulus Flow in the Large Scale Turbine Rig: Comparison of Different Rotor Tip Geometries

Dominik Ade, Johannes Eitenmüller, Sebastian Leichtfuß, Heinz-Peter Schiffer, Christoph Lyko, Gregor Schmid

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A008, June 13–17, 2022

Paper No: GT2022-80896

DOI: https://doi.org/10.1115/GT2022-80896

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Topics: Annulus, Flow (Dynamics), Leakage, Rotors, Turbines, Blades, Leakage flows, Vortices, Cavities, Design

Proceedings Papers

Circulation Budget Analysis of the Leading-Edge Vortex in a Wells Turbine Under Steady Inflow Conditions

Kaihe Geng, Ce Yang, Xinyu He, Chenxing Hu, Hanzhi Zhang, Xin Shi

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A014, June 13–17, 2022

Paper No: GT2022-81890

DOI: https://doi.org/10.1115/GT2022-81890

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Topics: Inflow, Turbines, Vortices, Wells, Vorticity, Stall inception, Convection, Flow (Dynamics), Rotors, Shear (Mechanics)

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

Correlated Pressure-Velocity Instability in a Transonic High-Pressure Turbine Blade

Matteo Dellacasagrande, Davide Lengani, Ettore Bertolini, Wolfgang Sanz

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A020, June 13–17, 2022

Paper No: GT2022-82205

DOI: https://doi.org/10.1115/GT2022-82205

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Topics: High pressure (Physics), Pressure, Turbine blades, Boundary layers, Waves, Blades, Fluctuations (Physics), Suction, Large eddy simulation, Principal component analysis

Proceedings Papers

Vortex Unsteadiness in the Endwall Region of a High-Lift Low-Pressure Turbine Passage

Christopher R. Marks, Nathan Fletcher, Rolf Sondergaard

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A003, June 13–17, 2022

Paper No: GT2022-79335

DOI: https://doi.org/10.1115/GT2022-79335

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Topics: Pressure, Turbines, Vortices, Flow (Dynamics), Junctions, Blades, Cascades (Fluid dynamics), Fluctuations (Physics), Suction, Heat transfer

Proceedings Papers

Large Eddy Simulation of Turbulent Flow Through a Compressor Cascade

Syed Anjum Haider Rizvi, Joseph Mathew

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A040, June 13–17, 2022

Paper No: GT2022-83081

DOI: https://doi.org/10.1115/GT2022-83081

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Topics: Cascades (Fluid dynamics), Compressors, Large eddy simulation, Turbulence, Blades, Separation (Technology), Chords (Trusses), Suction, Airfoils, Boundary layers

NARROW

Film Cooling Hole Shape Effects on Turbine Blade Heat Transfer – Part I: Computational Comparison to Experiment

Film Cooling Hole Shape Effects on Turbine Blade Heat Transfer – Part II: Effects of Mass Flow Rate and Unsteadiness

Experimental Evaluation of a Wavy Trailing Edge Cooling Design as an Alternative to Pressure Side Cutback Cooling

Free-Stream Turbulence Induced Boundary-Layer Transition in Low-Pressure Turbines

Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section Part I: Effect of Inflow Disturbances

Design Optimization of Blade Tip in Subsonic and Transonic Turbine Stages - Part II: Flow Physics and Augmented Aerothermal Integral Objective Function

Investigation on Strain and Stress Principal Axes in Unsteady DNS Turbine Data

High-Fidelity Simulation Study of the Unsteady Flow Effects on High-Pressure Turbine Blade Performance

Stall Margin Improvement in a Transonic Compressor With a Casing Treatment: Flow Mechanism

Unsteady Structure of Compressor Tip Leakage Flows

Numerical Investigation of Unsteady Inlet Guide Vane-Rotor Interactions in a Transonic Fan Due to Boundary Layer Ingestion

Effects of Bleed Slot Size on the Shock-Wave/Boundary-Layer Interactions in a Transonic Compressor Stator

Effects of Ribbed Surfaces on Profile Losses of Low-Pressure-Turbine Blades

Vortical Structures and Loss Mechanism of Tip Leakage Flow In Subsonic and Transonic Turbine Stages

Investigation of the Interaction Between Tip Leakage and Main Annulus Flow in the Large Scale Turbine Rig: Comparison of Different Rotor Tip Geometries

Circulation Budget Analysis of the Leading-Edge Vortex in a Wells Turbine Under Steady Inflow Conditions

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

Correlated Pressure-Velocity Instability in a Transonic High-Pressure Turbine Blade

Vortex Unsteadiness in the Endwall Region of a High-Lift Low-Pressure Turbine Passage

Large Eddy Simulation of Turbulent Flow Through a Compressor Cascade

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