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RESEARCH PAPERS

Nonlinear Analysis of Rotating Stall

[+] Author and Article Information
H. Takata

University of Tokyo, Department of Aeronautics, Hongo, Bunkyo-ku, Tokyo

S. Nagano

University of Tokyo, College of General Education, Komaba, Meguro-ku, Tokyo

J. Eng. Power 94(4), 279-293 (Oct 01, 1972) (15 pages) doi:10.1115/1.3445683 History: Received October 14, 1971; Online July 14, 2010

Abstract

A new stall model to describe rotating stall in axial-flow compressors is established, where blade rows are replaced by semiactuator disks, flow fluctuations are permitted to be finite and nonsteady, and blade row characteristics are taken into consideration in nonlinear and nonsteady forms. Through numerical analysis using the finite difference method, it is attempted to make clear the aspects of rotating stall—such as number of stall cells, stall propagation velocity, wave shape and magnitude of disturbance and their variations with flow rate through the compressor, and the mechanisms which control them. Most of the aims are achieved by taking into consideration the effects of blade row interference and the nonlinearities of blade row characteristics.

Copyright © 1972 by ASME
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