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Keywords: rotating instability
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Proceedings Papers

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
... Abstract Rotating Instability (RI) is an unsteady aerodynamic phenomenon occurring at off-design conditions in axial compressors, featuring side-by-side peaks below the blade passing frequency (BPF) in pressure spectra. Especially when the mode orders of RI are close to the blade number...
Proceedings Papers

Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A008, June 13–17, 2022
Paper No: GT2022-80383
... of the compressor wheel. A second speed line is then used to validate this relationship. surge surge indication rotating stall rotating instability spike Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022...
Proceedings Papers

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A001, June 13–17, 2022
Paper No: GT2022-77977
... caused by vortex breakdown of the tip leakage, double leakage and axially reversed flow near the trailing edge was observed. It is found that the vortex breakdown region of the tip leakage vortex propagated in the circumferential direction and caused the rotating instability. In order to investigate...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A011, June 13–17, 2022
Paper No: GT2022-81921
... carried out to investigate two different mechanisms potentially accountable for flow induced vibrations. In part one, the focus is on the flutter stability, while the present part deals with the detection of rotating instability phenomena that might arise in the last stage during LVF conditions...
Proceedings Papers

Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T18A001, June 13–17, 2022
Paper No: GT2022-78205
.... High velocity gradients are observed within the shear layer between the bi-directional forward and reverse flow which results in the formation of rotating instability (RI) cells. Whoosh noise is generated due to the interaction of these rotating instabilities with the leading edge of main impeller...
Proceedings Papers

Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A001, June 7–11, 2021
Paper No: GT2021-58492
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58492 THE TIP LEAKAGE VORTEX BREAKDOWN AND ITS POSSIBLE RELATIONSHIP WITH ROTATING INSTABILITY IN A SUBSONIC COMPRESSOR ROTOR Fan Yang Yanhui Wu Northwestern...
Proceedings Papers

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT35A006, June 7–11, 2021
Paper No: GT2021-58929
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58929 INVESTIGATION ON MODE CHARACTERISTICS OF ROTATING INSTABILITY AND ROTATING STALL IN AN AXIAL COMPRESSOR Zeyuan Yang1, Yadong Wu1,2, and Hua Ouyang1,2 1...
Topics: Compressors
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A003, September 21–25, 2020
Paper No: GT2020-14428
... duct agree reasonably well with the corresponding experimental results. After establishing the accuracy of predictions, flow structures and time-resolved pressures are closely examined in the vicinity of the main blade leading edge. This reveals the presence of rotating instabilities that may interact...
Proceedings Papers

Proc. ASME. GT2006, Volume 6: Turbomachinery, Parts A and B, 377-387, May 8–11, 2006
Paper No: GT2006-90947
... compressor acoustic resonance mode trapping cut-off frequency transmission reflection rotating stall rotating instability Proceedings of Insert Conference Abbreviation: ASME Turbo Expo 2006 8-11 May 2006 Barcelona, Spain Proce dings of GT2006 ASME Turbo Expo 2006: Power for Land, Sea and Air May 8...