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RESEARCH PAPERS

Flow Separation and Performance of Decelerating Channels for Centrifugal Turbomachines

[+] Author and Article Information
Teruo Sakurai

Mechanical Engineering Research Laboratory, Hitachi Ltd., Tsuchiura City, Ibaraki Pref., Japan

J. Eng. Power 97(3), 388-394 (Jul 01, 1975) (7 pages) doi:10.1115/1.3446017 History: Received November 27, 1973; Online July 14, 2010

Abstract

Fundamental studies on diffusers were performed in order to get a better knowledge of flow in centrifugal turbomachines and to improve their performance. First, the flow inside channels with logarithmic spiral walls was investigated. Boundary layer development and its effect on the diffuser performance (pressure-rise and its efficiency) were analyzed. Effects of diffuser configurations in circular cascades were also made clear. Further, separation in impellers with logarithmic spiral blades was computed and discussed.

Copyright © 1975 by ASME
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