Experimental and Theoretical Analysis of the Flow in a Centrifugal Compressor Volute

[+] Author and Article Information
E. Ayder, R. Van den Braembussche

von Karman Institute for Fluid Dynamics, Rhode Saint Genese, Belgium

J. J. Brasz

Carrier Corporation, Syracuse, NY 13221

J. Turbomach 115(3), 582-589 (Jul 01, 1993) (8 pages) doi:10.1115/1.2929293 History: Received January 28, 1992; Online June 09, 2008


Detailed measurements of the swirling flow in a centrifugal compressor volute with elliptical cross section are presented. They show important variations of the swirl and throughflow velocity, total and static pressure distribution at the different volute cross sections and at the diffuser exit. The basic mechanisms defining the complex three dimensional flow structure are clarified. The different sources of pressure loss have been investigated and used to improve the prediction capability of one-dimensional mean streamline analysis correlations. The tangential flow loss model under decelerating flow conditions and the friction loss model are confirmed. New empirical loss coefficients are proposed for the exit cone loss model and the tangential flow loss model for the case of accelerating flow in the volute.

Copyright © 1993 by The American Society of Mechanical Engineers
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