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Keywords: proper orthogonal decomposition
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Proceedings Papers
Pasquale Di Gloria, Maria Grazia De Giorgi, Luciano Strafella, Giuseppe Ciccarella, Gregorio Grazio Castelluzzo, Francesca Baldassarre, Antonio Ficarella
Proc. ASME. GT2024, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A051, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128827
... and CO emissions — a trade-off that warrants consideration. ammonia aviation fuel chemiluminescence exhaust gas analysis modal techniques proper orthogonal decomposition spectral proper orthogonal decomposition Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference...
Proceedings Papers
Sara Bonuso, Guido Marseglia, Pasquale Di Gloria, Ramón Antonio Otón-Martínez, Antonio Ficarella, Maria Grazia De Giorgi
Proc. ASME. GT2024, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A070, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129198
... with incremental H 2 additions to air/methane mixtures are examined using chemiluminescence techniques and spectral filtering for OH species. Proper Orthogonal Decomposition (POD) and Spectral Proper Orthogonal Decomposition (SPOD) methods identify coherent structures and frequency ranges of flame fluctuations...
Proceedings Papers
Proc. ASME. GT2024, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127205
... and around the spray cone region for SR of 10:0 and 8:2, but the flame first lifted off and then extinguished close to the nozzle at SR of 6:4. The high-speed OH* images were analyzed with Proper Orthogonal Decomposition (POD), which demonstrated different modes of flame fluctuations between conditions far...
Proceedings Papers
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT30A032, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126572
..., surpassing the control effect of D tc = 0.5. vortex shedding unsteady plasma excitation excitation frequency duty cycle proper orthogonal decomposition vortex identification triple decomposition of the relative motion near a point Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical...
Proceedings Papers
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122178
... to be the von Karman vortex street downstream the stator trailing edge and the rotorstator interaction. low pressure turbine proper orthogonal decomposition rotor-stator interaction Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London...
Proceedings Papers
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A024, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104234
... frequency around 3500Hz, or at a Strouhal number of 0.75. Further, energy scales and spatiotemporal features of these dominant unsteady behaviors are analyzed using proper orthogonal decomposition and dynamic mode decomposition methods. Results show that the low-frequency behaviors mainly caused...
Proceedings Papers
Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A026, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103132
... captured by a highspeed camera. The spatial patterns of the flame dynamic are identified using the proper orthogonal decomposition (POD) method. Additionally, the first few order modes, whose energy proportions are relatively larger, dominate the flame dynamics. The results indicate that as the length...
Proceedings Papers
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A035, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82871
... of the acoustic driving on the topology structure of the stratified flame is not apparent. Proper orthogonal decomposition of the stratified flame shows a wave of alternating positive and negative values across the flame indicating flame fluctuations are in axial modes. Proper orthogonal decomposition...
Proceedings Papers
Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A042, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60208
... with the hydrodynamic rate control retarder, and the potential of iris mechanism for adaptive control of hydrodynamic retarder is verified. proper orthogonal decomposition iris machine braking control Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11...
Proceedings Papers
Aravind Chandh, Askar Kazbekov, Angie Zhang, Subodh Adhikari, David Wu, Ben Emerson, Reza Rezvani, William Proscia, Tim Lieuwen, Adam Steinberg
Proc. ASME. GT2020, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A029, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15939
... and dilution jets. film cooling effusion jets blowing ratio acetone planar laser induced fluorescence proper orthogonal decomposition Dynamics of Effusion Cooling Fluid in a Pressurized Swirl Combustor Flow Aravind Chandh1, Askar Kazbekov1, Angie Zhang1, Subodh Adhikari1, David Wu1, Ben Emerson1...
