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RESEARCH PAPERS

Theoretical and Experimental Determination of Pressure Losses in a Single-Stage Axial Flow Compressor

[+] Author and Article Information
Y. Le Bot, J. Paulon, P. Belaygue

O. N. E. R. A., 92 Chatillon-sous-Bagneux, France

J. Eng. Power 92(4), 407-414 (Oct 01, 1970) (8 pages) doi:10.1115/1.3445371 History: Received February 02, 1970; Online July 14, 2010

Abstract

A single, isolated, test axial compressor rotor in a constant section annular duct is used for determination of off-design pressure losses. The results obtained are interpreted by means of loss coefficients and description of the flow field is deduced from a simplified actuator theory that takes into account pressure losses. Rotor stall limit is interpreted as that limit mass flow rate for which no continuous solution of the equations can be obtained. Unstable operations that take place for mass flow rates smaller than the stall limit are shown to be either rotating stall or wall separation, according to the shape of the downstream pressure profile. Experiments on the rotor confirm validity of these assumptions.

Copyright © 1970 by ASME
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