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Proceedings Papers

On the Mode Characteristics of Rotating Instability With Different Tip Clearances

Zeyuan Yang, Lele Ming, Si Wu, Yadong Wu, Jie Tian, Hua Ouyang
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A013, June 13–17, 2022
Paper No: GT2022-82072
DOI: https://doi.org/10.1115/GT2022-82072
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Topics: Blades, Clearances (Engineering), Compressors, Design, Ducts, Flow (Dynamics), Noise (Sound), Pressure, Rotors, Shear (Mechanics)
Proceedings Papers

Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section - Part II: Effect of Rotor-Stator Gap

Pawel J. Przytarski, John Leggett, Richard Sandberg, Christoph Bode
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A019, June 13–17, 2022
Paper No: GT2022-82474
DOI: https://doi.org/10.1115/GT2022-82474
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Topics: Compressors, Large eddy simulation, Rotors, Stators, Flow (Dynamics), Blades, Engineering simulation, Simulation, Boundary layers, Design
Proceedings Papers

Insights Into the Unsteady Shock Boundary Layer Interaction

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
Paper No: GT2022-82720
DOI: https://doi.org/10.1115/GT2022-82720
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Topics: Boundary layers, Shock (Mechanics), Oscillations, Blades, Flow (Dynamics), Cascades (Fluid dynamics), Compressors, Inflow, Vibration, Mach number
Proceedings Papers

Effect of a Reduced Oil Flow Rate on the Static and Dynamic Performance of a Tilting Pad Journal Bearing Running in Both the Flooded and Evacuated Conditions

Luis San Andrés, Andy Alcantar
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, V08AT22A006, June 13–17, 2022
Paper No: GT2022-81839
DOI: https://doi.org/10.1115/GT2022-81839
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Topics: Bearings, Flow (Dynamics), Journal bearings, Stress, Drag (Fluid dynamics), Temperature, Damping, Fluid films, Lubricants, Machinery
Proceedings Papers

Acoustic-Convective Interference In Transfer Functions of Methane/Hydrogen and Pure Hydrogen Flames

Eirik Æsøy, José G. Aguilar, Mirko R. Bothien, Nicholas A. Worth, James R. Dawson
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A028, June 7–11, 2021
Paper No: GT2021-60058
DOI: https://doi.org/10.1115/GT2021-60058
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Topics: Acoustics, Flames, Hydrogen, Methane, Transfer functions, Flow (Dynamics), Ejectors, Screws, Excitation, Geometry
Proceedings Papers

Thermoacoustic Instabilities of Hydrogen-Enriched Partially Premixed Flames in a Swirl Combustor

Y. Gong, D. Fredrich, A. J. Marquis, W. P. Jones, I. Boxx
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A023, June 7–11, 2021
Paper No: GT2021-60009
DOI: https://doi.org/10.1115/GT2021-60009
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Topics: Combustion chambers, Flames, Hydrogen, Chemistry, Combustion, Oscillations, Chemical reactions, Density, Dynamics (Mechanics), Feedback
Proceedings Papers

Unsteady Pressure Measurements in a Heated Rotating Cavity

Richard W. Jackson, Hui Tang, James A. Scobie, Oliver J. Pountney, Carl M. Sangan, J. Michael Owen, Gary D. Lock
Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT14A005, June 7–11, 2021
Paper No: GT2021-59090
DOI: https://doi.org/10.1115/GT2021-59090
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Topics: Cavities, Pressure measurement, Vortices, Buoyancy, Engines, Flow (Dynamics), Aircraft engines, Cavity flows, Compressors, Computational fluid dynamics
Proceedings Papers

Analysis of Swirl Number Effects on Effusion Flow Behaviour Using Time Resolved PIV

T. Lenzi, A. Picchi, A. Andreini, B. Facchini
Proc. ASME. GT2021, Volume 5A: Heat Transfer — Combustors; Film Cooling, V05AT11A001, June 7–11, 2021
Paper No: GT2021-59217
DOI: https://doi.org/10.1115/GT2021-59217
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Topics: Flow (Dynamics), Tin, Cooling, Swirling flow, Combustion chambers, Jets, Momentum, Turbulence, Coolants, Cooling systems
Proceedings Papers

Bayesian Machine Learning for the Prognosis of Combustion Instabilities From Noise

Ushnish Sengupta, Carl E. Rasmussen, Matthew P. Juniper
Proc. ASME. GT2020, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A047, September 21–25, 2020
Paper No: GT2020-14904
DOI: https://doi.org/10.1115/GT2020-14904
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Topics: Combustion, Machine learning, Noise (Sound), Acoustics, Flames, Algorithms, Artificial neural networks, Boundary-value problems, Combustion chambers, Fingerprints
Proceedings Papers

The Effects of Reynolds Number on the Stall and Pre-Stall Behaviour of Compact Axial Compressors

Jack Hutchings, Cesare Hall
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A051, September 21–25, 2020
Paper No: GT2020-15384
DOI: https://doi.org/10.1115/GT2020-15384
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Topics: Compressors, Reynolds number, Flow (Dynamics), Rotors, Pressure, Spectra (Spectroscopy), Blades, Compression, Geometry, Pressure measurement
Proceedings Papers

Performance of a Low Speed Axial Fan Under Distortion: An Experimental Investigation

Sumit Tambe, Ugaitz Bartolomé Oseguera, Arvind Gangoli Rao
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A040, September 21–25, 2020
Paper No: GT2020-14956
DOI: https://doi.org/10.1115/GT2020-14956
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Topics: Aircraft, Boundary layers, Design, Engines, Flight, Flow (Dynamics), Fuels, Inflow, Microphones, Noise (Sound)
Proceedings Papers

Experimental Study of Cyclic Synchronous Vibration of an Integrally Geared Centrifugal Compressor for Air Separation Application

Zhusan Luo, Carl L. Schwarz, Fabio Martins, Anthony Rosati
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A020, September 21–25, 2020
Paper No: GT2020-15949
DOI: https://doi.org/10.1115/GT2020-15949
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Topics: Compressors, Separation (Technology), Vibration, Cycles, Machinery, Phase shift, Signal processing, Spectra (Spectroscopy)
Proceedings Papers

Single Nodal Diameter Excitation of Turbine Blades: Experimental and Theoretical Study

Thomas Hoffmann, Lars Panning-von Scheidt, Jörg Wallaschek
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A008, September 21–25, 2020
Paper No: GT2020-14282
DOI: https://doi.org/10.1115/GT2020-14282
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Topics: Excitation, Turbine blades, Blades, Engines, Vibration, Spectra (Spectroscopy), Aerodynamics, Disks, Fluid-dynamic forces, Geometry
Proceedings Papers

Pre-Stall Waves: Precursors to Stall Inception in a Contra-Rotating Axial Fan

Manas Madasseri Payyappalli, A. M. Pradeep
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A010, September 21–25, 2020
Paper No: GT2020-14371
DOI: https://doi.org/10.1115/GT2020-14371
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Topics: Stall inception, Waves, Compressors, Design, Excitation, Fluids, Inflow, Rotors, Spectra (Spectroscopy)
Proceedings Papers

Effect of Noise and Nonlinearities on Thermoacoustics of Can-Annular Combustors

G. Ghirardo, J. P. Moeck, M. R. Bothien
Proc. ASME. GT2019, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A032, June 17–21, 2019
Paper No: GT2019-90546
DOI: https://doi.org/10.1115/GT2019-90546
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Topics: Combustion chambers, Noise (Sound), Thermoacoustics, Flames, Ducts, Engineering simulation, Simulation, Turbines, Acoustics, Engines
Proceedings Papers

Combustion Instabilities of Separated Stratified Swirling Flames With Different Degrees of Premixedness

Xinyao Wang, Xiao Han, Xin Hui, Chi Zhang, Heng Song, Yuzhen Lin, Chih-Jen Sung
Proc. ASME. GT2019, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A052, June 17–21, 2019
Paper No: GT2019-90852
DOI: https://doi.org/10.1115/GT2019-90852
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Topics: Combustion, Flames, Swirling flow, Fuels, Oscillations, Pressure, Chemiluminescence, Combustion chambers, Delays, Fast Fourier transforms
Proceedings Papers

Surge and Stall Detection Using Acoustic Analysis for Gas Turbine Hybrid Cycles

Keishaly Cabrera Cruz, Paolo Pezzini, Lawrence Shadle, Kenneth M. Bryden
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T06A006, June 17–21, 2019
Paper No: GT2019-91021
DOI: https://doi.org/10.1115/GT2019-91021
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Topics: Acoustics, Cycles, Gas turbines, Surges, Compressors, Spectra (Spectroscopy), Density, Dynamics (Mechanics), Fast Fourier transforms, Fuel cells
Proceedings Papers

On the Importance of Transition Control at Transonic Compressor Blades

A. Hergt, J. Klinner, S. Grund, C. Willert, W. Steinert, M. Beversdorff
Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT39A009, June 17–21, 2019
Paper No: GT2019-90440
DOI: https://doi.org/10.1115/GT2019-90440
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Topics: Blades, Compressors, Shock waves, Cascades (Fluid dynamics), Flow (Dynamics), Oscillations, Boundary layers, Shock (Mechanics), Air jets, Boundary layer turbulence
Proceedings Papers

Advanced Numerical Simulation of Turbine Rim Seal Flows and Consideration for RANS Turbulence Modelling

Feng Gao, Nicolas Poujol, John W. Chew, Paul F. Beard
Proc. ASME. GT2018, Volume 5B: Heat Transfer, V05BT15A005, June 11–15, 2018
Paper No: GT2018-75116
DOI: https://doi.org/10.1115/GT2018-75116
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Topics: Computer simulation, Flow (Dynamics), Modeling, Reynolds-averaged Navier–Stokes equations, Turbines, Turbulence, Computational fluid dynamics, Cavities, Pressure, Unsteady flow
Proceedings Papers

Detailed Analysis of Boundary Layer Control by Fluidic Oscillators on a Highly Loaded Profile

Julia Kurz, Reinhard Niehuis
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT41A019, June 11–15, 2018
Paper No: GT2018-76174
DOI: https://doi.org/10.1115/GT2018-76174
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Topics: Boundary layers, Flow control, Flow separation, Separation (Technology), Suction, Cascades (Fluid dynamics), Pressure, Pressure gradient, Reynolds number, Spectra (Spectroscopy)