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Keywords: vaneless diffuser
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Proceedings Papers

Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT35A018, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103128
...Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-103128 NASA SMALL ENGINE COMPONENTS COMPRESSOR TEST FACILITY: HIGH EFFICIENCY CENTRIFUGAL COMPRESSOR VANELESS DIFFUSER AND TRANSITION DUCT CONFIGURATIONS...
Proceedings Papers

Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A025, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82861
... Abstract The interaction mechanism of impeller and diffuser stall in a centrifugal compressor with a vaneless diffuser was investigated by experimental and computational analyses. This study focuses on the effect of impeller stall on the diffuser stall behavior. Impeller stall rotated at 58...
Proceedings Papers

Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A010, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59869
... Abstract The rotating mechanism of diffuser stall in a centrifugal compressor with a vaneless diffuser is investigated via experimental and computational analyses. Diffuser stall is generated as the mass flow rate decreases, and it rotates at 25%–30% of the impeller rotational speed. First...
Proceedings Papers

Proc. ASME. GT2019, Volume 2C: Turbomachinery, V02CT41A028, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91353
... vaneless diffuser pinching rotation Abstract Non-conventional diffuser designs are introduced to minimize the energy losses associated with diffusion and to enhance stable operating range of the diffusion system. This is achieved by reducing width of the diffuser by modifying a hub...
Proceedings Papers

Proc. ASME. GT2005, Volume 6: Turbo Expo 2005, Parts A and B, 1335-1342, June 6–9, 2005
Publisher: American Society of Mechanical Engineers
Paper No: GT2005-68445
... 19 11 2008 Paper reports a numerical study on vaneless diffuser flow instability performed for the purpose of better understanding of rotating stall mechanism in radial vaneless diffusers. This analysis is restricted to the two-dimensional flow where effect of wall boundary layers...