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Proceedings Papers

Evaluation of Subfilter Model Performance for LES of Supercritical Fluids

Dhruv Purushotham, Joseph C. Oefelein
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A018, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125326
https://doi.org/10.1115/GT2024-125326
View Paper titled, Evaluation of Subfilter Model Performance for LES of Supercritical Fluids
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Topics: Computer simulation, Large eddy simulation, Modeling, Supercritical fluids, Turbulence, Anisotropy, Carbon dioxide, Engineering simulation, Fluids, Momentum
Proceedings Papers

CFD Analysis of The Effect of a Cylindrical Probe Rod in the Axial Gap of the Last Stage on Rotating Instabilities in a Low-Pressure Model Steam Turbine Operating at Low Load

Ilgit Ercan, Damian M. Vogt
Proc. ASME. GT2023, Volume 10: Steam Turbine, V010T20A011, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102480
https://doi.org/10.1115/GT2023-102480
View Paper titled, CFD Analysis of The Effect of a Cylindrical Probe Rod in the Axial Gap of the Last Stage on Rotating Instabilities in a Low-Pressure Model Steam Turbine Operating at Low Load
Open the PDF for CFD Analysis of The Effect of a Cylindrical Probe Rod in the Axial Gap of the Last Stage on Rotating Instabilities in a Low-Pressure Model Steam Turbine Operating at Low Load in another window
Topics: Computational fluid dynamics, Pressure, Probes, Steam turbines, Stress, Flow (Dynamics), Signals, Turbines, Unsteady flow, Annulus
Proceedings Papers

Numerical Analysis of High Frequency Transverse Instabilities in a Can-Type Combustor

Sandeep Jella, Marc Füri, Vasilis Katsapis
Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A036, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103298
https://doi.org/10.1115/GT2023-103298
View Paper titled, Numerical Analysis of High Frequency Transverse Instabilities in a Can-Type Combustor
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Topics: Combustion chambers, Numerical analysis, Dynamics (Mechanics), Flames, Modeling, Shear (Mechanics), Spin (Aerodynamics), Spinning (Textile), Combustion, Curve fitting
Proceedings Papers

Comparison of Infrared Spectroscopic Methods in Predicting DCN of Jet Fuels and Their Blends Using Chemometric Tools

Anandvinod Dalmiya, Manaf Sheyyab, Eric K. Mayhew, Kenneth Brezinsky, Patrick T. Lynch
Proc. ASME. GT2023, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A028, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104099
https://doi.org/10.1115/GT2023-104099
View Paper titled, Comparison of Infrared Spectroscopic Methods in Predicting DCN of Jet Fuels and Their Blends Using Chemometric Tools
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Topics: Fourier transform infrared spectroscopy, Ignition, Jet fuels, Fuels, Spectra (Spectroscopy), Absorption, Artificial neural networks, Calibration, Diesel engines, Errors
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
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

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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82072
https://doi.org/10.1115/GT2022-82072
View Paper titled, On the Mode Characteristics of Rotating Instability With Different Tip Clearances
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Topics: Blades, Clearances (Engineering), Compressors, Design, Ducts, Flow (Dynamics), Noise (Sound), Pressure, Rotors, Shear (Mechanics)
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81839
https://doi.org/10.1115/GT2022-81839
View Paper titled, 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
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Topics: Bearings, Flow (Dynamics), Journal bearings, Stress, Drag (Fluid dynamics), Temperature, Damping, Fluid films, Lubricants, Machinery
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82474
https://doi.org/10.1115/GT2022-82474
View Paper titled, Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section - Part II: Effect of Rotor-Stator Gap
Open the PDF for Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section - Part II: Effect of Rotor-Stator Gap in another window
Topics: Compressors, Large eddy simulation, Rotors, Stators, Flow (Dynamics), Blades, Engineering simulation, Simulation, Boundary layers, Design
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60058
https://doi.org/10.1115/GT2021-60058
View Paper titled, Acoustic-Convective Interference In Transfer Functions of Methane/Hydrogen and Pure Hydrogen Flames
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60009
https://doi.org/10.1115/GT2021-60009
View Paper titled, Thermoacoustic Instabilities of Hydrogen-Enriched Partially Premixed Flames in a Swirl Combustor
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Topics: Combustion chambers, Flames, Hydrogen, Chemistry, Combustion, Oscillations, Chemical reactions, Density, Dynamics (Mechanics), Feedback
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59217
https://doi.org/10.1115/GT2021-59217
View Paper titled, Analysis of Swirl Number Effects on Effusion Flow Behaviour Using Time Resolved PIV
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Topics: Flow (Dynamics), Tin, Cooling, Swirling flow, Combustion chambers, Jets, Momentum, Turbulence, Coolants, Cooling systems
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59090
https://doi.org/10.1115/GT2021-59090
View Paper titled, Unsteady Pressure Measurements in a Heated Rotating Cavity
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Topics: Cavities, Pressure measurement, Vortices, Buoyancy, Engines, Flow (Dynamics), Aircraft engines, Cavity flows, Compressors, Computational fluid dynamics
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15384
https://doi.org/10.1115/GT2020-15384
View Paper titled, The Effects of Reynolds Number on the Stall and Pre-Stall Behaviour of Compact Axial Compressors
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14956
https://doi.org/10.1115/GT2020-14956
View Paper titled, Performance of a Low Speed Axial Fan Under Distortion: An Experimental Investigation
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Topics: Aircraft, Boundary layers, Design, Engines, Flight, Flow (Dynamics), Fuels, Inflow, Microphones, Noise (Sound)
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14371
https://doi.org/10.1115/GT2020-14371
View Paper titled, Pre-Stall Waves: Precursors to Stall Inception in a Contra-Rotating Axial Fan
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Topics: Stall inception, Waves, Compressors, Design, Excitation, Fluids, Inflow, Rotors, Spectra (Spectroscopy)
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14904
https://doi.org/10.1115/GT2020-14904
View Paper titled, Bayesian Machine Learning for the Prognosis of Combustion Instabilities From Noise
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Topics: Combustion, Machine learning, Noise (Sound), Acoustics, Flames, Algorithms, Artificial neural networks, Boundary-value problems, Combustion chambers, Fingerprints
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15949
https://doi.org/10.1115/GT2020-15949
View Paper titled, Experimental Study of Cyclic Synchronous Vibration of an Integrally Geared Centrifugal Compressor for Air Separation Application
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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14282
https://doi.org/10.1115/GT2020-14282
View Paper titled, Single Nodal Diameter Excitation of Turbine Blades: Experimental and Theoretical Study
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Topics: Excitation, Turbine blades, Blades, Engines, Vibration, Spectra (Spectroscopy), Aerodynamics, Disks, Fluid-dynamic forces, Geometry
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91021
https://doi.org/10.1115/GT2019-91021
View Paper titled, Surge and Stall Detection Using Acoustic Analysis for Gas Turbine Hybrid Cycles
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Topics: Acoustics, Cycles, Gas turbines, Surges, Compressors, Spectra (Spectroscopy), Density, Dynamics (Mechanics), Fast Fourier transforms, Fuel cells
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90546
https://doi.org/10.1115/GT2019-90546
View Paper titled, Effect of Noise and Nonlinearities on Thermoacoustics of Can-Annular Combustors
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Topics: Combustion chambers, Noise (Sound), Thermoacoustics, Flames, Ducts, Engineering simulation, Simulation, Turbines, Acoustics, Engines