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Keywords: vaneless diffuser
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Proceedings Papers

Proc. ASME. FEDSM2020, Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V001T01A006, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20128
...The Unsteady Behavior of Diffuser Stall in a Centrifugal Compressor with Vaneless Diffuser Hiroshi Miida1, Kenta Tajima1, Nobumichi Fujisawa1, Yutaka Ohta1 1Waseda University, Tokyo, Japan ABSTRACT The unsteady diffuser stall behavior in a centrifugal compressor with a vaneless diffuser...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 543-550, July 8–12, 2012
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2012-72421
... and Aerospace Engineering, Seoul National University Seoul, Korea wingssy@turbo.snu.ac.kr Shin Hyoung, Kang Department of Mechanical and Aerospace Engineering, Seoul National University Seoul, Korea kangsh@snu.ac.kr Keywords: Centrifugal compressor, Impeller, Vaneless diffuser, Fuel-cell vehicles, Noise...
Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 785-791, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30944
... This study will be described details on influence of movable diffuser such as local reverse flow patterns and pressure fluctuation in a vaneless diffuser during unstable operation of a centrifugal compressor. The experimental study is carried out in centrifugal compressor immersed into a water...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 2: Fora, 141-145, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78262
... 30 07 2010 Copyright © 2009 by ASME 1 Proceedings of FEDSM2009 2009 ASME Fluids Engineering Summer Meeting August 2-6, 2009, Vail, CO FEDSM2009-78262 An Experimental Investigation of the Effects of Vaneless Diffuser Geometry on the Stall Characteristics Saad A. Ahmed and Mohamed Gadalla...
Proceedings Papers

Proc. ASME. FEDSM2008, Volume 2: Fora, 271-275, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2008-55342
... rotating stall centrifugal blower rough wall vaneless diffuser The operation of centrifugal compressor systems is limited at low-mass flow rates by fluid flow instabilities leading to rotating stall or surge. These instabilities limit the flow range in which the compressor can operate...
Proceedings Papers

Proc. ASME. FEDSM2006, Volume 2: Fora, 245-250, July 17–20, 2006
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2006-98261
... that the flow instability in the diffuser (stall) was delayed to a lower flow coefficient (the mass flow rate could be reduced to 70% of its value with the smooth surface) when the rough surfaces were positioned on the diffuser shroud. Keywords: rotating stall, centrifugal blower, rough wall, vaneless diffuser...
Proceedings Papers

Proc. ASME. FEDSM2006, Volume 2: Fora, 691-696, July 17–20, 2006
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2006-98172
... through numerical and experimental investigations of stall effects on compressors and blowers. Recently, Ahmed nvestigated detailed measurements of the unsteady periodic- racteristics which were taken in a radial vaneless diffuser. et al. (2003) conducted a series of experimental tests on the stall...