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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79335
https://doi.org/10.1115/GT2022-79335
View Paper titled, Vortex Unsteadiness in the Endwall Region of a High-Lift Low-Pressure Turbine Passage
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Topics: Pressure, Turbines, Vortices, Flow (Dynamics), Junctions, Blades, Cascades (Fluid dynamics), Fluctuations (Physics), Suction, Heat transfer
Proceedings Papers

Evaluation of Various Numerical Methods for Blade Row Interaction in Turbomachinery

Yangwei Liu, Xiaosong Yong, Yumeng Tang
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A048, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-84388
https://doi.org/10.1115/GT2022-84388
View Paper titled, Evaluation of Various Numerical Methods for Blade Row Interaction in Turbomachinery
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Topics: Blades, Numerical analysis, Spacetime, Turbomachinery
Proceedings Papers

On the Development of a Synchronized Harmonic Balance Method for Multiple Frequencies and its Application to LPT Flows

Javier Crespo, Jesús Contreras
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A025, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14952
https://doi.org/10.1115/GT2020-14952
View Paper titled, On the Development of a Synchronized Harmonic Balance Method for Multiple Frequencies and its Application to LPT Flows
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Topics: Flow (Dynamics), Boundary-value problems, Simulation, Fourier transforms, Interpolation, Robustness, Rotors, Stators, Annulus, Blades
Proceedings Papers

Averaging for High Fidelity Modelling: Towards Large Eddy Simulations in Multi-Passage Multi-Row Configurations

L. He
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A030, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15157
https://doi.org/10.1115/GT2020-15157
View Paper titled, Averaging for High Fidelity Modelling: Towards Large Eddy Simulations in Multi-Passage Multi-Row Configurations
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Topics: Blades, Computation, Flow (Dynamics), Flow simulation, Large eddy simulation, Modeling, Resolution (Optics), Scalars, Spacetime, Turbomachinery
Proceedings Papers

Dynamic Behavior of the Ultra-High Efficiency Gas Turbine Engine, UHEGT, With Stator Internal Combustion

Seyed M. Ghoreyshi, Meinhard T. Schobeiri
Proc. ASME. GT2019, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Honors and Awards, V001T01A010, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90583
https://doi.org/10.1115/GT2019-90583
View Paper titled, Dynamic Behavior of the Ultra-High Efficiency Gas Turbine Engine, UHEGT, With Stator Internal Combustion
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Topics: Combustion, Gas turbines, Stators, Fuels, Flow (Dynamics), Engines, Fluctuations (Physics), Simulation, Turbines, Compressors
Proceedings Papers

Multi-Scale Parallelised CFD Modelling Towards Resolving Manufacturable Roughness

Marios Kapsis, Li He, Yan Sheng Li, Roger Wells, Omar Valero, Senthil Krishnababu, Gaurav Gupta, Jayanta Kapat, Megan Schaenzer
Proc. ASME. GT2019, Volume 2C: Turbomachinery, V02CT41A012, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90314
https://doi.org/10.1115/GT2019-90314
View Paper titled, Multi-Scale Parallelised CFD Modelling Towards Resolving Manufacturable Roughness
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Topics: Computational fluid dynamics, Modeling, Surface roughness, Flow (Dynamics), Resolution (Optics), Design, Additive manufacturing, Finishes, Simulation, Spacetime
Proceedings Papers

The Influence of Rotor-Wakes on Boundary Layer Development in an Axial Compressor and its Numerical Prediction

Dominik Frieling, Achim Griebel, Lars Wein, Joerg R. Seume, Florian Herbst
Proc. ASME. GT2018, Volume 2A: Turbomachinery, V02AT45A012, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75631
https://doi.org/10.1115/GT2018-75631
View Paper titled, The Influence of Rotor-Wakes on Boundary Layer Development in an Axial Compressor and its Numerical Prediction
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Topics: Boundary layers, Compressors, Rotors, Wakes, Engineering simulation, Simulation, Turbulence, Shear stress, Blades, Computer simulation
Proceedings Papers

Evaluation of Integral Turbulence Scale Through the Fan Stage of a Turbofan Using Hot Wire Anemometry and Large Eddy Simulation

Nicolas Odier, Florent Duchaine, Laurent Gicquel, Gabriel Staffelbach, Adrien Thacker, Nicolás García Rosa, Guillaume Dufour, Jens-Dominik Muller
Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A021, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75741
https://doi.org/10.1115/GT2018-75741
View Paper titled, Evaluation of Integral Turbulence Scale Through the Fan Stage of a Turbofan Using Hot Wire Anemometry and Large Eddy Simulation
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Topics: Large eddy simulation, Turbofans, Turbulence, Wire, Aircraft engines, Fluctuations (Physics), Spacetime, Spectra (Spectroscopy), Stators, Turbomachinery
Proceedings Papers

Experimental Investigation of Periodically Unsteady Wake Impact on the Secondary Flow in a 1.5 Stage Full Annular LPT Cascade With Modified T106 Blading

Martin Sinkwitz, David Engelmann, Ronald Mailach
Proc. ASME. GT2017, Volume 2A: Turbomachinery, V02AT40A024, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64390
https://doi.org/10.1115/GT2017-64390
View Paper titled, Experimental Investigation of Periodically Unsteady Wake Impact on the Secondary Flow in a 1.5 Stage Full Annular LPT Cascade With Modified T106 Blading
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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Wakes, Stators, Turbines, Blades, Boundary layers, Disks, Flow separation, Pressure
Proceedings Papers

Absolute and Convective Instabilities of a Separated Boundary Layer Near the Leading Edge of an Aerofoil

S. Sarkar, K. S. Jadhav
Proc. ASME. GT2017, Volume 2D: Turbomachinery, V02DT46A031, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-65265
https://doi.org/10.1115/GT2017-65265
View Paper titled, Absolute and Convective Instabilities of a Separated Boundary Layer Near the Leading Edge of an Aerofoil
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Topics: Airfoils, Boundary layers, Impulse (Physics), Chords (Trusses), Deflection, Flow (Dynamics), Particulate matter, Reynolds number, Spacetime, Stability
Proceedings Papers

Subsonic Flow Over Open Cavities: Part 1 — Analytical Models and Numerical Investigations

Weidong Shao, Jun Li
Proc. ASME. GT2016, Volume 5A: Heat Transfer, V05AT15A005, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56414
https://doi.org/10.1115/GT2016-56414
View Paper titled, Subsonic Flow Over Open Cavities: Part 1 — Analytical Models and Numerical Investigations
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Topics: Cavities, Subsonic flow, Oscillations, Acoustics, Boundary layers, Feedback, Fluctuations (Physics), Mach number, Noise (Sound), Resonance
Proceedings Papers

Analysis of the Unsteady Flow in Compressor Cascade With POD Method

Wang Yangang, Li Yue, Chen Junxu
Proc. ASME. GT2016, Volume 2D: Turbomachinery, V02DT44A033, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57638
https://doi.org/10.1115/GT2016-57638
View Paper titled, Analysis of the Unsteady Flow in Compressor Cascade With POD Method
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Topics: Cascades (Fluid dynamics), Compressors, Unsteady flow, Flow (Dynamics), Flow separation, Vortices, Errors, Fast Fourier transforms, Gas flow, Pressure gradient
Proceedings Papers

Numerical Analysis of an Alternate Stall in a Radial Vaned Diffuser

E. Benichou, I. Trébinjac
Proc. ASME. GT2016, Volume 2D: Turbomachinery, V02DT42A011, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56485
https://doi.org/10.1115/GT2016-56485
View Paper titled, Numerical Analysis of an Alternate Stall in a Radial Vaned Diffuser
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Topics: Diffusers, Numerical analysis, Flow (Dynamics), Simulation, Compressors, Impellers, Computational fluid dynamics, Phase shift, Physics, Reynolds-averaged Navier–Stokes equations
Proceedings Papers

The Numerical Simulation of Multi-Scale Oil Films Using Coupled VOF and Eulerian Thin-Film Models

B. Kakimpa, H. P. Morvan, S. Hibberd
Proc. ASME. GT2016, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A020, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56747
https://doi.org/10.1115/GT2016-56747
View Paper titled, The Numerical Simulation of Multi-Scale Oil Films Using Coupled VOF and Eulerian Thin-Film Models
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Topics: Computer simulation, Thin films, Resolution (Optics), Film thickness, Flow (Dynamics), Aircraft engines, Bearings, Fluids, Lubrication theory, Modeling
Proceedings Papers

Time-Domain Implementation of Higher-Order Non-Reflecting Boundary Conditions for Turbomachinery Applications

Stefan Henninger, Peter Jeschke, Graham Ashcroft, Edmund Kügeler
Proc. ASME. GT2015, Volume 2B: Turbomachinery, V02BT39A016, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42362
https://doi.org/10.1115/GT2015-42362
View Paper titled, Time-Domain Implementation of Higher-Order Non-Reflecting Boundary Conditions for Turbomachinery Applications
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Topics: Boundary-value problems, Turbomachinery, Blades, Acoustics, Flutter (Aerodynamics), Laplace transforms, Reflection, Approximation, Bessel functions, Contamination
Proceedings Papers

On the Fast Prediction of Open Rotor Tonal Interaction Noise

Mathieu Gruber, Timothée Lonfils, Chloé Dumont, Laurence Vion, Adrien Dubois, Timothy Delteil Mc Williams
Proc. ASME. GT2015, Volume 2B: Turbomachinery, V02BT41A006, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42579
https://doi.org/10.1115/GT2015-42579
View Paper titled, On the Fast Prediction of Open Rotor Tonal Interaction Noise
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Topics: Noise (Sound), Rotors, Design, Acoustics, Blades, Computational fluid dynamics, Radiation (Physics), Engines, Flow (Dynamics), Fluctuations (Physics)
Proceedings Papers

Space-Time Gradient Method for Unsteady Bladerow Interaction: Part I — Basic Methodology and Verification

J. Yi, L. He
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT44A019, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43152
https://doi.org/10.1115/GT2015-43152
View Paper titled, Space-Time Gradient Method for Unsteady Bladerow Interaction: Part I — Basic Methodology and Verification
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Topics: Gradient methods, Spacetime, Flow (Dynamics), Turbomachinery, Unsteady flow, Annulus, Computers, Design, Modeling, Rotors
Proceedings Papers

High Order Large Eddy Simulations for a Transonic Turbine Blade Using Hybrid Unstructured Meshes

Yi Lu, W. N. Dawes
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT44A005, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42283
https://doi.org/10.1115/GT2015-42283
View Paper titled, High Order Large Eddy Simulations for a Transonic Turbine Blade Using Hybrid Unstructured Meshes
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Topics: Large eddy simulation, Turbine blades, Shock (Mechanics), Spacetime, Flow (Dynamics), Chain, Engineering simulation, Runge-Kutta methods, Simulation, Unsteady flow
Proceedings Papers

Space-Time Gradient Method for Unsteady Bladerow Interaction: Part II — Further Validation, Clocking and Multi-Disturbance Effect

L. He, J. Yi, P. Adami, L. Capone
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT44A020, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43156
https://doi.org/10.1115/GT2015-43156
View Paper titled, Space-Time Gradient Method for Unsteady Bladerow Interaction: Part II — Further Validation, Clocking and Multi-Disturbance Effect
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Topics: Gradient methods, Spacetime, Rotors, Stators, Blades, Turbines, Modeling, Temperature, Boundary layers, Compressors
Proceedings Papers

High-Fidelity Simulations of Low-Pressure Turbines: Effect of Flow Coefficient and Reduced Frequency on Losses

V. Michelassi, L. Chen, R. Pichler, R. Sandberg, R. Bhaskaran
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT44A024, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43429
https://doi.org/10.1115/GT2015-43429
View Paper titled, High-Fidelity Simulations of Low-Pressure Turbines: Effect of Flow Coefficient and Reduced Frequency on Losses
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Topics: Engineering simulation, Flow (Dynamics), Pressure, Simulation, Turbines, Wakes, Boundary layers, Computer simulation, Blades, Large eddy simulation