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Proceedings Papers

Nature of Transonic Compressor Flow: Importance of 3D A throat /A inlet Part I: Subsonic Mach Numbers

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Demetrios Lefas
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A046, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128748
https://doi.org/10.1115/GT2024-128748
View Paper titled, Nature of Transonic Compressor Flow: Importance of 3D A throat /A inlet Part I: Subsonic Mach Numbers
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Topics: Compressors, Flow (Dynamics), Mach number, Design, Blades, Shock (Mechanics), Geometry, Transonic flow, Accounting, Computational fluid dynamics
Proceedings Papers

Unsteady Flow Simulations of a Transonic Low-Pressure Turbine Cascade

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Liza Hullin, Ignacio Gonzalez-Martino, Benoît Bonnal
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT30A013, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123798
https://doi.org/10.1115/GT2024-123798
View Paper titled, Unsteady Flow Simulations of a Transonic Low-Pressure Turbine Cascade
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Topics: Cascades (Fluid dynamics), Eddies (Fluid dynamics), Engineering simulation, Lattice Boltzmann methods, Pressure, Simulation, Transonic flow, Turbines, Unsteady flow, Wakes
Proceedings Papers

Numerical Analysis of Oscillating Blade in Linear Cascade at Transonic Flow

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Ragupathy S., Abhijit Kushari, M. C. Keerthi
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A027, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129233
https://doi.org/10.1115/GT2024-129233
View Paper titled, Numerical Analysis of Oscillating Blade in Linear Cascade at Transonic Flow
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Topics: Blades, Cascades (Fluid dynamics), Numerical analysis, Oscillations, Transonic flow, Shock (Mechanics), Fluctuations (Physics), Compressors, Flutter (Aerodynamics), Pressure
Proceedings Papers

The Unsteady Shock-Boundary Layer Interaction in a Compressor Cascade – Part 3: Mechanisms of Shock Oscillation

Open Access

Edwin Joseph Munoz Lopez, Alexander Hergt, Joachim Klinner, Bjoern F. Klose, Chris Willert, Volker Gümmer
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A019, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128197
https://doi.org/10.1115/GT2024-128197
View Paper titled, The Unsteady Shock-Boundary Layer Interaction in a Compressor Cascade – Part 3: Mechanisms of Shock Oscillation
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Topics: Cascades (Fluid dynamics), Compressors, Oscillations, Shock (Mechanics), Pressure, Unsteady flow, Waves, Blades, Computational fluid dynamics, Cycles
Proceedings Papers

Assessment of Measurement Techniques for Adiabatic Cooling Effectiveness in Transonic Flow Over a Flat Plate

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Wei Zeng, Siming Dai, Yisu Liu, Haiteng Ma
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A030, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127493
https://doi.org/10.1115/GT2024-127493
View Paper titled, Assessment of Measurement Techniques for Adiabatic Cooling Effectiveness in Transonic Flow Over a Flat Plate
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Topics: Adiabatic cooling, Film cooling, Flat plates, Transients (Dynamics), Transonic flow
Proceedings Papers

Analysis of the Bifurcating Duct of an Inlet Particle Separator in Transonic Flow Conditions

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Marco Castaldi, Ignacio Mayo, Jacques Demolis, Frank Eulitz
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A031, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103506
https://doi.org/10.1115/GT2023-103506
View Paper titled, Analysis of the Bifurcating Duct of an Inlet Particle Separator in Transonic Flow Conditions
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Topics: Computational fluid dynamics, Ducts, Particulate matter, Pressure, Shock (Mechanics), Transonic flow
Proceedings Papers

A Numerical Test Rig for Turbomachinery Flows Based on Large Eddy Simulations With a High-Order Discontinuous Galerkin Scheme - Part 2: Shock-Capturing and Transonic Flows

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Björn F. Klose, Christian Morsbach, Michael Bergmann, Alexander Hergt, Joachim Klinner, Sebastian Grund, Edmund Kügeler
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A008, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101891
https://doi.org/10.1115/GT2023-101891
View Paper titled, A Numerical Test Rig for Turbomachinery Flows Based on Large Eddy Simulations With a High-Order Discontinuous Galerkin Scheme - Part 2: Shock-Capturing and Transonic Flows
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Topics: Flow (Dynamics), Large eddy simulation, Shock (Mechanics), Transonic flow, Turbomachinery
Proceedings Papers

Reynolds Number Calibration Coefficient for Multi-Hole Pneumatic Probes

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Johannes Bachner, Andreas Pahs
Proc. ASME. GT2023, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A007, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101320
https://doi.org/10.1115/GT2023-101320
View Paper titled, Reynolds Number Calibration Coefficient for Multi-Hole Pneumatic Probes
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Topics: Calibration, Probes, Reynolds number, Pressure, Mach number, Transonic flow, Additive manufacturing, Errors, Flow (Dynamics), Interpolation
Proceedings Papers

Wall Resolved Large-Eddy Simulations of High-Speed Low-Pressure Turbine Cascades

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Patrick Tene Hedje, Yacine Bechane, Sergio Lavagnoli, Laurent Bricteux
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101251
https://doi.org/10.1115/GT2023-101251
View Paper titled, Wall Resolved Large-Eddy Simulations of High-Speed Low-Pressure Turbine Cascades
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Topics: Finite volume methods, Large eddy simulation, Pressure, Transonic flow, Turbines
Proceedings Papers

Considerations for Compressible Film Cooling: A Computational Study of the Effects of Transonic Flows and Varying Mainstream Mach Number

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Dale W. Fox, Michael Furgeson, David G. Bogard
Proc. ASME. GT2023, Volume 7A: Heat Transfer — Combustors; Film Cooling, V07AT12A022, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104049
https://doi.org/10.1115/GT2023-104049
View Paper titled, Considerations for Compressible Film Cooling: A Computational Study of the Effects of Transonic Flows and Varying Mainstream Mach Number
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Topics: Film cooling, Mach number, Transonic flow
Proceedings Papers

Insights Into the Unsteady Shock Boundary Layer Interaction

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A. Hergt, J. Klinner, C. Willert, S. Grund, W. Steinert
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A033, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82720
https://doi.org/10.1115/GT2022-82720
View Paper titled, Insights Into the Unsteady Shock Boundary Layer Interaction
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Topics: Boundary layers, Shock (Mechanics), Oscillations, Blades, Flow (Dynamics), Cascades (Fluid dynamics), Compressors, Inflow, Vibration, Mach number
Proceedings Papers

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

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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83473
https://doi.org/10.1115/GT2022-83473
View Paper titled, Vortical Structures and Loss Mechanism of Tip Leakage Flow In Subsonic and Transonic Turbine Stages
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Topics: Leakage flows, Turbines, Flow (Dynamics), Cavities, Vortices, Leakage, Platform supply vessels, Pressure, Cascades (Fluid dynamics), Heat transfer
Proceedings Papers

Comparing Gradient-Free and Gradient-Based Multi-Objective Optimization Methodologies on the VKI-LS89 Turbine Vane Test Case

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Romain Hottois, Arnaud Châtel, Grégory Coussement, Tom Verstraete, Tom De Bruyn
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT34A013, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82218
https://doi.org/10.1115/GT2022-82218
View Paper titled, Comparing Gradient-Free and Gradient-Based Multi-Objective Optimization Methodologies on the VKI-LS89 Turbine Vane Test Case
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Topics: Pareto optimization, Turbines, Optimization, Design, Algorithms, Cascades (Fluid dynamics), Entropy, Evolutionary algorithms, Flow (Dynamics), Flow turning
Proceedings Papers

Response of Separated Boundary Layers to Steady and Pulsated Flow Injection in Transonic Internal Flows

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Hunter D. Nowak, Federico Lluesma-Rodriguez, Iman Rahbari, John P. Clark, Guillermo Paniagua
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T05A021, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83152
https://doi.org/10.1115/GT2022-83152
View Paper titled, Response of Separated Boundary Layers to Steady and Pulsated Flow Injection in Transonic Internal Flows
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Topics: Boundary layers, Flow (Dynamics), Internal flow, Separation (Technology), Computational fluid dynamics, Energy generation, Flight, Flow control, Flow separation, Reynolds number
Proceedings Papers

Vane-Probe Interactions in Transonic Flows

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A. F. M. Torre, M. Patinios, G. Lopes, L. Simonassi, S. Lavagnoli
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T05A015, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82549
https://doi.org/10.1115/GT2022-82549
View Paper titled, Vane-Probe Interactions in Transonic Flows
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Topics: Probes, Transonic flow
Proceedings Papers

Evaluating the Aerodynamic Damping at Shock Wave Boundary Layer Interacting Flow Conditions With Harmonic Balance

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Jan Philipp Heners, Thomas Carraro, Christian Frey, Björn Grüber
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT21A007, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81689
https://doi.org/10.1115/GT2022-81689
View Paper titled, Evaluating the Aerodynamic Damping at Shock Wave Boundary Layer Interacting Flow Conditions With Harmonic Balance
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Topics: Boundary layers, Damping, Flow (Dynamics), Shock waves, Reynolds-averaged Navier–Stokes equations, Shock (Mechanics), Annulus, Compressors, Flutter (Aerodynamics), High pressure (Physics)
Proceedings Papers

On the Effect of Frequency Separation, Mass Ratio, Solidity and Aerodynamic Resonances in Coupled Mode Flutter of a Linear Compressor Cascade

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Matthias Schuff, Virginie Anne Chenaux
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT21A015, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82160
https://doi.org/10.1115/GT2022-82160
View Paper titled, On the Effect of Frequency Separation, Mass Ratio, Solidity and Aerodynamic Resonances in Coupled Mode Flutter of a Linear Compressor Cascade
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Topics: Cascades (Fluid dynamics), Compressors, Flutter (Aerodynamics), Resonance, Separation (Technology), Aerodynamics, Fluid-dynamic forces, Acoustics, Cycles, Damping
Proceedings Papers

The New Chapter of Transonic Compressor Cascade Design at the DLR

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Edwin J. Munoz Lopez, Alexander Hergt, Sebastian Grund
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T01A005, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80189
https://doi.org/10.1115/GT2022-80189
View Paper titled, The New Chapter of Transonic Compressor Cascade Design at the DLR
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Topics: Cascades (Fluid dynamics), Compressors, Design, Optimization, Blades, Wind tunnels, Transonic flow, Chain, Computational fluid dynamics, Engineering simulation
Proceedings Papers

Sensitivity of Adiabatic Cooling Effectiveness to Mainstream and Coolant Temperatures in Transonic Flow Over an Idealized Blade Tip Model

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Haiteng Ma, Wei Zeng, Siming Dai, Hongmei Jiang
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A034, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82778
https://doi.org/10.1115/GT2022-82778
View Paper titled, Sensitivity of Adiabatic Cooling Effectiveness to Mainstream and Coolant Temperatures in Transonic Flow Over an Idealized Blade Tip Model
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Topics: Adiabatic cooling, Blades, Coolants, Film cooling, Heat transfer, Temperature, Transients (Dynamics), Transonic flow, Turbines
Proceedings Papers

Design Optimization of Blade Tip in Subsonic and Transonic Turbine Stages - Part I: Stage Design and Preliminary Tip Optimization

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P. H. Duan, L. He
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT34A020, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83050
https://doi.org/10.1115/GT2022-83050
View Paper titled, Design Optimization of Blade Tip in Subsonic and Transonic Turbine Stages - Part I: Stage Design and Preliminary Tip Optimization
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Topics: Blades, Design, Optimization, Turbines, Flow (Dynamics), Rotors, Heat transfer, Mach number, Heat, Stress