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Proceedings Papers

Flow Transition in the Wheel Side Space of a 1.5-Stage Test Turbine

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Lukas Pehle, Nikita Dimidziev, Manfred Wirsum
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A006, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123896
https://doi.org/10.1115/GT2024-123896
View Paper titled, Flow Transition in the Wheel Side Space of a 1.5-Stage Test Turbine
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Topics: Flow (Dynamics), Turbines, Wheels, Pressure, Sealing (Process), Annulus, Gas turbines, Geometry, Simulation, Air flow
Proceedings Papers

Superposition of Overall Cooling Effectiveness on a Turbine Blade Leading Edge

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Bailey W. Hopkins, James L. Rutledge
Proc. ASME. GT2024, Volume 7: Heat Transfer: Combustors; Heat Transfer: Film Cooling, V007T12A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121339
https://doi.org/10.1115/GT2024-121339
View Paper titled, Superposition of Overall Cooling Effectiveness on a Turbine Blade Leading Edge
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Topics: Cooling, Turbine blades, Film cooling, Design, Turbines, Airfoils, Engines, Pressure gradient
Proceedings Papers

Implementation of a TBLE-Based Wall Model With Pressure Gradient in a Massively Parallel LES Solver

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Mehdi Cizeron, Nicolas Odier, Florent Duchaine, Laurent Y. M. Gicquel, Franck Nicoud
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A009, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122031
https://doi.org/10.1115/GT2024-122031
View Paper titled, Implementation of a TBLE-Based Wall Model With Pressure Gradient in a Massively Parallel LES Solver
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Topics: Modeling, Pressure gradient, Turbulence
Proceedings Papers

A Through-Flow Approach Associating Velocity and Pressure Gradient Equations for Transonic Axial Flow Compressors Performance Prediction

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Mingyi Wang, Tongxi Li, Zhiheng Wang, Guang Xi
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A047, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128690
https://doi.org/10.1115/GT2024-128690
View Paper titled, A Through-Flow Approach Associating Velocity and Pressure Gradient Equations for Transonic Axial Flow Compressors Performance Prediction
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Topics: Axial flow, Compressors, Flow (Dynamics), Pressure gradient
Proceedings Papers

Applications and Recent Developments of the Open-Source Computational Fluid Dynamics High-Fidelity Spectral/Hp Element Framework Nektar++ for Turbomachinery Configurations

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Guglielmo Vivarelli, João Anderson Isler, Francesco Montomoli, Chris Cantwell, Spencer J. Sherwin, Yuri Frey-Marioni, Raul Vazquez-Diaz
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A022, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125039
https://doi.org/10.1115/GT2024-125039
View Paper titled, Applications and Recent Developments of the Open-Source Computational Fluid Dynamics High-Fidelity Spectral/Hp Element Framework Nektar++ for Turbomachinery Configurations
Open the PDF for Applications and Recent Developments of the Open-Source Computational Fluid Dynamics High-Fidelity Spectral/Hp Element Framework Nektar++ for Turbomachinery Configurations in another window
Topics: Computational fluid dynamics, Turbomachinery, Hardware, Blades, Boundary layers, Computer simulation, Degrees of freedom, Design, Engines, Flat plates
Proceedings Papers

Unsteady Loss Mechanisms in Low-Pressure Turbines With Diverging End-Walls Studied via High-Fidelity Simulation

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Marco Rosenzweig, Melissa Kozul, Richard D. Sandberg
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A010, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125408
https://doi.org/10.1115/GT2024-125408
View Paper titled, Unsteady Loss Mechanisms in Low-Pressure Turbines With Diverging End-Walls Studied via High-Fidelity Simulation
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Topics: Pressure, Simulation, Turbines, Wakes, Blades, Flow (Dynamics), Boundary layers, Engines, Cascades (Fluid dynamics), Mach number
Proceedings Papers

Experimental and Numerical Comparison of Two Turbine Vane Frame Designs

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Nicolas Krajnc, Asim Hafizovic, Lukas Wiesinger, Francesco Mangini, Patrick Zeno Sterzinger, Marios Patinios, Emil Göttlich
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT33A010, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126184
https://doi.org/10.1115/GT2024-126184
View Paper titled, Experimental and Numerical Comparison of Two Turbine Vane Frame Designs
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Topics: Turbines, Flow (Dynamics), Design, Ducts, High pressure (Physics), Momentum, Rotors, Airfoils, Boundary-value problems, Computer simulation
Proceedings Papers

A Compressor Wheel Design for Noise Reduction Due to Pressure Gradient in an Automotive Turbocharger

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Wonbae Jung, Seongsoo Kim, Taeho Noh
Proc. ASME. GT2023, Volume 9: Microturbines, Turbochargers, and Small Turbomachines; Oil and Gas Applications, V009T18A015, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104105
https://doi.org/10.1115/GT2023-104105
View Paper titled, A Compressor Wheel Design for Noise Reduction Due to Pressure Gradient in an Automotive Turbocharger
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Topics: Compressors, Design, Noise (Sound), Noise control, Pressure gradient, Turbochargers, Wheels
Proceedings Papers

A New Empirical Correlation for Transition in Both Short and Long Separation Bubbles

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Daniele Petronio, Matteo Dellacasagrande, Daniele Simoni, Davide Lengani
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT32A028, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103021
https://doi.org/10.1115/GT2023-103021
View Paper titled, A New Empirical Correlation for Transition in Both Short and Long Separation Bubbles
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Topics: Bubbles, Separation (Technology), Reynolds number, Boundary layers, Flow (Dynamics), Vorticity, Databases, Free stream turbulence, Pressure gradient, Blades
Proceedings Papers

Boundary Layer Analysis of a Transonic High-Pressure Turbine Vane Using Ultra-Fast-Response Temperature-Sensitive Paint

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Anna Petersen, Michael Hilfer
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A007, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101889
https://doi.org/10.1115/GT2023-101889
View Paper titled, Boundary Layer Analysis of a Transonic High-Pressure Turbine Vane Using Ultra-Fast-Response Temperature-Sensitive Paint
Open the PDF for Boundary Layer Analysis of a Transonic High-Pressure Turbine Vane Using Ultra-Fast-Response Temperature-Sensitive Paint in another window
Topics: Boundary layers, High pressure (Physics), Paints, Temperature, Turbines, Separation (Technology), Surface roughness, Nozzle guide vanes, Aerodynamics, Computer simulation
Proceedings Papers

Direct Numerical Simulation of an HPT Stage: Unsteady Boundary Layer Transition and the Resulting Flow Structures

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Taiyang Wang, Yaomin Zhao, John Leggett, Richard D. Sandberg
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A011, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102213
https://doi.org/10.1115/GT2023-102213
View Paper titled, Direct Numerical Simulation of an HPT Stage: Unsteady Boundary Layer Transition and the Resulting Flow Structures
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Topics: Boundary layers, Computer simulation, Flow (Dynamics), Wakes, Turbulence, Blades, Boundary layer turbulence, Bubbles, Databases, Free stream turbulence
Proceedings Papers

Effects of Riblet Dimensions on the Transitional Boundary Layers Over High-Lift Turbine Blades

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S. M. Ananth, Massimiliano Nardini, Aditya Vaid, Melissa Kozul, Nagabhushana Rao Vadlamani, Richard D. Sandberg
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A036, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103536
https://doi.org/10.1115/GT2023-103536
View Paper titled, Effects of Riblet Dimensions on the Transitional Boundary Layers Over High-Lift Turbine Blades
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Topics: Boundary layers, Dimensions, Turbine blades, Surface roughness, Blades, Skin friction (Fluid dynamics), Bubbles, Drag (Fluid dynamics), Flow (Dynamics), Separation (Technology)
Proceedings Papers

On the Effect of Purge Air on the Aerodynamic Performance of a State-of-the-Art Turbine-Rear-Frame Guide Vane

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Malte Schien, Christian Wakelam, Mattia Graiff, Emil Göttlich, Andreas Marn
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT33A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101915
https://doi.org/10.1115/GT2023-101915
View Paper titled, On the Effect of Purge Air on the Aerodynamic Performance of a State-of-the-Art Turbine-Rear-Frame Guide Vane
Open the PDF for On the Effect of Purge Air on the Aerodynamic Performance of a State-of-the-Art Turbine-Rear-Frame Guide Vane in another window
Topics: Cavities, Guide vanes, Turbines, Turbomachinery, Fluids, Temperature, Flow (Dynamics), Pressure, Thermal efficiency, Aerodynamics
Proceedings Papers

Numerical Study on the Influence of Geometrical Parameters on the Performance of a Turbine Exhaust Hood

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Anastasia Fomina, Christopher Fuhrer, Damian M. Vogt, Tobias Willeke
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT32A018, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102206
https://doi.org/10.1115/GT2023-102206
View Paper titled, Numerical Study on the Influence of Geometrical Parameters on the Performance of a Turbine Exhaust Hood
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Topics: Exhaust systems, Turbines, Diffusers, Pressure, Flow (Dynamics), Experimental design, Design, Flow separation, Flow simulation, Geometry
Proceedings Papers

Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High Speed Axial Compressor Stage Performance

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Cedric Babin, Xavier Ottavy, Fabrizio Fontaneto
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A035, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82868
https://doi.org/10.1115/GT2022-82868
View Paper titled, Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High Speed Axial Compressor Stage Performance
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Topics: Cavity flows, Compressors, Leakage flows, Stators, Topology, Cavities, Design, Boundary layers, Engineering simulation, Fluid dynamics
Proceedings Papers

Experimental Investigation of Inlet Stagnation Pressure Distortion Effects on a Transonic Axial Compressor Rotor

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Andrew A. Oliva, Scott C. Morris
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A041, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83452
https://doi.org/10.1115/GT2022-83452
View Paper titled, Experimental Investigation of Inlet Stagnation Pressure Distortion Effects on a Transonic Axial Compressor Rotor
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Topics: Compressors, Pressure, Rotors, Mach number, Annulus, Instrumentation, Performance characterization, Pressure gradient, Resolution (Optics)
Proceedings Papers

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

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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82875
https://doi.org/10.1115/GT2022-82875
View Paper titled, Effects of Ribbed Surfaces on Profile Losses of Low-Pressure-Turbine Blades
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Topics: Blades, Pressure, Turbines, Cascades (Fluid dynamics), Flat plates, Boundary layers, Dimensions, Geometry, Inflow, Pressure gradient
Proceedings Papers

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

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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82558
https://doi.org/10.1115/GT2022-82558
View Paper titled, Profile Loss Reduction of High Lift Turbine Blades With Rough and Ribbed Surfaces
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Topics: Surface roughness, Turbine blades, Blades, Turbulence, Boundary layers, Pressure gradient, Separation (Technology), Suction, Boundary layer turbulence, Bubbles
Proceedings Papers

High-Order Spectral/hp Compressible and Incompressible Comparison of Transitional Boundary-Layers Subject to a Realistic Pressure Gradient and High Reynolds Number

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Guglielmo Vivarelli, João Anderson Isler, Francesco Montomoli, Spencer J. Sherwin, Paolo Adami
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A024, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82100
https://doi.org/10.1115/GT2022-82100
View Paper titled, High-Order Spectral/hp Compressible and Incompressible Comparison of Transitional Boundary-Layers Subject to a Realistic Pressure Gradient and High Reynolds Number
Open the PDF for High-Order Spectral/hp Compressible and Incompressible Comparison of Transitional Boundary-Layers Subject to a Realistic Pressure Gradient and High Reynolds Number in another window
Topics: Boundary layers, Pressure gradient, Reynolds number, Flow (Dynamics), Turbulence, Bubbles, Compressibility, Compressible flow, Computer simulation, Cross-flow
Proceedings Papers

A Turbo-Oriented Data-Driven Modification to the Spalart-Allmaras Turbulence Model

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Xiao He, Fanzhou Zhao, Mehdi Vahdati
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A008, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80456
https://doi.org/10.1115/GT2022-80456
View Paper titled, A Turbo-Oriented Data-Driven Modification to the Spalart-Allmaras Turbulence Model
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Topics: Turbochargers, Turbulence, Compressors, Rotors, Flow (Dynamics), Corners (Structural elements), NASA, Pressure, Pressure gradient, Separation (Technology)