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Proceedings Papers

Numerical Research on Near Stall Characteristics of a Transonic Axial Compressor Based on Wavelet Analysis

Kailong Xia, Junda Feng, Mingmin Zhu, Hefang Deng, Xiaoqing Qiang, Jinfang Teng
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A029, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82366
https://doi.org/10.1115/GT2022-82366
View Paper titled, Numerical Research on Near Stall Characteristics of a Transonic Axial Compressor Based on Wavelet Analysis
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Topics: Compressors, Simulation, Stall inception, Wavelets
Proceedings Papers

Approximating Gas Turbine Combustor Exit Temperature Distribution Factors Using Spatially Under-Sampled Measurements

Fangyuan Lou
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A013, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81623
https://doi.org/10.1115/GT2022-81623
View Paper titled, Approximating Gas Turbine Combustor Exit Temperature Distribution Factors Using Spatially Under-Sampled Measurements
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Topics: Approximation, Combustion chambers, Gas turbines, Temperature distribution, Wavelets
Proceedings Papers

Reconstructing Turbine Non-Uniform Flow Including Hot Streaks Using Spatially Under-Sampled Measurements

Xu Zhu, Fangyuan Lou, Kai Zhou, Xinqian Zheng
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A033, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83509
https://doi.org/10.1115/GT2022-83509
View Paper titled, Reconstructing Turbine Non-Uniform Flow Including Hot Streaks Using Spatially Under-Sampled Measurements
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Topics: Approximation, Flow (Dynamics), High pressure (Physics), Turbines, Wavelets, Temperature, Cooling, Temperature distribution, Engines, Annulus
Proceedings Papers

Transient Engine Condition Monitoring of Micro Gas Turbines in a Highly Dynamic Setting

Tihomir Varchev, Matthias Weiss, Stephan Staudacher, Christian Koch
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T05A013, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82377
https://doi.org/10.1115/GT2022-82377
View Paper titled, Transient Engine Condition Monitoring of Micro Gas Turbines in a Highly Dynamic Setting
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Topics: Condition monitoring, Engines, Micro gas turbines, Transients (Dynamics), Flight, Artificial neural networks, Flow (Dynamics), Measurement uncertainty, Noise (Sound), Wavelets
Proceedings Papers

Impact of a Centrebody on the Unsteady Flow Dynamics of A Swirl Nozzle: Intermittency of PVC Oscillations

Saarthak Gupta, Santosh Hemchandra, Masayasu Shimura, Santosh Shanbhogue, Ahmed Ghoniem
Proc. ASME. GT2021, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A003, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58358
https://doi.org/10.1115/GT2021-58358
View Paper titled, Impact of a Centrebody on the Unsteady Flow Dynamics of A Swirl Nozzle: Intermittency of PVC Oscillations
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Topics: Dynamics (Mechanics), Nozzles, Oscillations, Unsteady flow, Flow (Dynamics), Vortices, Bubbles, Combustion chambers, Turbulence, Emissions
Proceedings Papers

Accounting for Circumferential Flow Nonuniformity in a Multi-Stage Axial Compressor

Fangyuan Lou, Douglas R. Matthews, Nicholas J. Kormanik, III, Nicole L. Key
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A039, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59968
https://doi.org/10.1115/GT2021-59968
View Paper titled, Accounting for Circumferential Flow Nonuniformity in a Multi-Stage Axial Compressor
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Topics: Accounting, Approximation, Compressors, Flow (Dynamics), Wavelets
Proceedings Papers

Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data: Part 1 — Methodology and Sensitivity Analysis

Fangyuan Lou, Nicole L. Key
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A033, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14867
https://doi.org/10.1115/GT2020-14867
View Paper titled, Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data: Part 1 — Methodology and Sensitivity Analysis
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Topics: Approximation, Compressors, Flow (Dynamics), Particle swarm optimization, Sensitivity analysis, Wavelets
Proceedings Papers

Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data: Part 2 — Practical Application for Experiments

Fangyuan Lou, Douglas R. Matthews, Nicholas J. Kormanik, III, Nicole L. Key
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A052, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15465
https://doi.org/10.1115/GT2020-15465
View Paper titled, Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data: Part 2 — Practical Application for Experiments
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Topics: Approximation, Compressors, Flow (Dynamics), Wavelets
Proceedings Papers

Novel Cyclo-Non-Stationary Indicators for Monitoring of Rotating Machinery Operating Under Speed and Load Varying Conditions

Alexandre Mauricio, Dustin Helm, Markus Timusk, Jerome Antoni, Konstantinos Gryllias
Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T05A018, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15245
https://doi.org/10.1115/GT2020-15245
View Paper titled, Novel Cyclo-Non-Stationary Indicators for Monitoring of Rotating Machinery Operating Under Speed and Load Varying Conditions
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Topics: Machinery, Stress, Signals, Condition monitoring, Failure, Maintenance, Bearings, Damage, Density, Excitation
Proceedings Papers

Signal Processing Techniques to Detect Centrifugal Compressors Instabilities in Large Volume Power Plants

Carlo Alberto Niccolini Marmont Du Haut Champ, Mario Luigi Ferrari, Paolo Silvestri, Aristide Fausto Massardo
Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T06A009, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14795
https://doi.org/10.1115/GT2020-14795
View Paper titled, Signal Processing Techniques to Detect Centrifugal Compressors Instabilities in Large Volume Power Plants
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Topics: Compressors, Power stations, Signal processing, Surges, Wavelets, Microturbines, Signals, Accelerometers, Acoustics, Combustion chambers
Proceedings Papers

Lagrangian Saddle Point Analysis in the Flow-Field of a Bluff-Body Stabilized Combustor

C. P. Premchand, Nitin B. George, Manikandan Raghunathan, Vishnu R. Unni, R. I. Sujith, Vineeth Nair
Proc. ASME. GT2019, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A041, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91713
https://doi.org/10.1115/GT2019-91713
View Paper titled, Lagrangian Saddle Point Analysis in the Flow-Field of a Bluff-Body Stabilized Combustor
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Topics: Combustion chambers, Flow (Dynamics), Heat, Acoustics, Dynamics (Mechanics), Flames, Fluctuations (Physics), Pressure, Sound pressure, Turbulence
Proceedings Papers

Evaluation of Turbulent Spot Production Rate in Boundary Layers Under Variable Pressure Gradients for Gas Turbine Applications

M. Dellacasagrande, D. Lengani, D. Simoni, M. Ubaldi, P. Zunino
Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT45A019, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91229
https://doi.org/10.1115/GT2019-91229
View Paper titled, Evaluation of Turbulent Spot Production Rate in Boundary Layers Under Variable Pressure Gradients for Gas Turbine Applications
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Topics: Boundary layers, Gas turbines, Pressure gradient, Turbulence, Flow (Dynamics), Reynolds number, Arches, Databases, Flat plates, Probability
Proceedings Papers

Fault Diagnosis Method for Inter-Shaft Bearings Based on Information Exergy and Random Forest

Jing Tian, Yanting Ai, Ming Zhao, Chengwei Fei, Fengling Zhang
Proc. ASME. GT2018, Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T05A017, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76101
https://doi.org/10.1115/GT2018-76101
View Paper titled, Fault Diagnosis Method for Inter-Shaft Bearings Based on Information Exergy and Random Forest
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Topics: Bearings, Exergy, Fault diagnosis, Signals, Wavelets, Acoustic emissions
Proceedings Papers

Automated Gas Turbine Sensor Fault Diagnostics

Gbanaibolou Jombo, Yu Zhang, Jonathan David Griffiths, Tony Latimer
Proc. ASME. GT2018, Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T05A003, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75229
https://doi.org/10.1115/GT2018-75229
View Paper titled, Automated Gas Turbine Sensor Fault Diagnostics
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Topics: Gas turbines, Sensors, Signals, Discrete wavelet transforms, Failure, Flaw detection, Testing, Transients (Dynamics), Wavelets
Proceedings Papers

Correlations for the Prediction of Intermittency and Turbulent Spot Production Rate in Separated Flows

M. Dellacasagrande, R. Guida, D. Lengani, D. Simoni, M. Ubaldi, P. Zunino
Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A015, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75624
https://doi.org/10.1115/GT2018-75624
View Paper titled, Correlations for the Prediction of Intermittency and Turbulent Spot Production Rate in Separated Flows
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Topics: Flow (Dynamics), Turbulence, Reynolds number, Separation (Technology), Boundary layers, Bubbles, Dynamics (Mechanics), Fittings, Particulate matter, Pressure gradient
Proceedings Papers

Effect of Acoustic Feedback on Lagrangian Coherent Structures in a Backward Facing Step Combustor With a Partially Premixed Flame

Ramgopal Sampath, S. R. Chakravarthy
Proc. ASME. GT2017, Volume 4B: Combustion, Fuels and Emissions, V04BT04A052, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64856
https://doi.org/10.1115/GT2017-64856
View Paper titled, Effect of Acoustic Feedback on Lagrangian Coherent Structures in a Backward Facing Step Combustor With a Partially Premixed Flame
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Topics: Acoustics, Combustion chambers, Feedback, Flames, Pressure, Oscillations, Flow (Dynamics), Vortex shedding, Vortices, Chemiluminescence
Proceedings Papers

Large Eddy Simulations of Separated Shear Layer Behaviors in a High-Lift LP Turbine

Weihao Zhang, Zhengping Zou, Jian Ye
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A022, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43054
https://doi.org/10.1115/GT2015-43054
View Paper titled, Large Eddy Simulations of Separated Shear Layer Behaviors in a High-Lift LP Turbine
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Topics: Large eddy simulation, Shear (Mechanics), Turbines, Vortices, Chords (Trusses), Flow (Dynamics), Mach number, Outflow, Pressure, Reynolds number
Proceedings Papers

Experimental Investigation of Unsteady Tip Clearance Flow in a Counter-Rotating Fan

Wang Yangang, Yue Shaoyuan, Chen Junxu, Wu Canghai
Proc. ASME. GT2015, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T09A016, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43753
https://doi.org/10.1115/GT2015-43753
View Paper titled, Experimental Investigation of Unsteady Tip Clearance Flow in a Counter-Rotating Fan
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Topics: Clearances (Engineering), Flow (Dynamics), Rotors, Stall inception, Control equipment, Electromagnetism, Emission spectroscopy, Filters, Spectroscopy, Transducers
Proceedings Papers

Effect of Unsteady Wake Passing Frequency on Boundary Layer Transition, Experimental Investigation and Wavelet Analysis

M. T. Schobeiri, K. Read, J. Lewalle
Proc. ASME. GT1995, Volume 1: Turbomachinery, V001T01A102, June 5–8, 1995
Publisher: American Society of Mechanical Engineers
Paper No: 95-GT-437
https://doi.org/10.1115/95-GT-437
View Paper titled, Effect of Unsteady Wake Passing Frequency on Boundary Layer Transition, Experimental Investigation and Wavelet Analysis
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Topics: Boundary layers, Wakes, Wavelets, Unsteady flow, Cascades (Fluid dynamics), Fluctuations (Physics), Pressure gradient, Rods, Signals, Turbulence
Proceedings Papers

Time-Frequency Analysis of Compressor Rotating Stall by Means of Wavelet Transform

Shengfang Liao, Jingyi Chen
Proc. ASME. GT1996, Volume 1: Turbomachinery, V001T01A013, June 10–13, 1996
Publisher: American Society of Mechanical Engineers
Paper No: 96-GT-057
https://doi.org/10.1115/96-GT-057
View Paper titled, Time-Frequency Analysis of Compressor Rotating Stall by Means of Wavelet Transform
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Topics: Compressors, Time-frequency analysis, Wavelet transforms, Signals, Signal processing, Stall inception, Fourier transforms, Noise (Sound), Transients (Dynamics), Wavelets