RESEARCH PAPERS: Papers From Symposium on Prediction of Centrifugal Compressor and Pump Stability and Surge

Influence of Inlet Flow Conditions and Geometries of Centrifugal Vaneless Diffusers on Critical Flow Angle for Reverse Flow

[+] Author and Article Information
Yasutoshi Senoo, Yoshifumi Kinoshita

Research Institute of Industrial Science, Kyushu University, Fukuoka, Japan

J. Fluids Eng 99(1), 98-102 (Mar 01, 1977) (5 pages) doi:10.1115/1.3448577 History: Received December 30, 1976; Online October 12, 2010


The authors’ preceding analysis on centrifugal vaneless diffusers is used to examine the influences of diffuser geometries and of flow inlet conditions on the critical flow angle for reverse flow, and the results are presented in graphs. The diffuser width to radius ratio, the inlet Mach number, and the distortion of the inlet velocity distribution have significant influences on the critical flow angle, while the Reynolds number and the boundary layer thickness at the inlet have minor influences.

Copyright © 1977 by ASME
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