Rotor Design to Attenuate Flow Distortion—Part I: A Semiactuator Disk Analysis

[+] Author and Article Information
C. T. Savell

Theorectical Aeroacoustics, General Electric Co., Evendale, Ohio

W. R. Wells

University of Cincinnati, Cincinnati, Ohio

J. Eng. Power 97(1), 11-20 (Jan 01, 1975) (10 pages) doi:10.1115/1.3445890 History: Received November 27, 1973; Online July 14, 2010


The transfer of stationary circumferential inlet distortion through a rotor is analyzed using unsteady semiactuator disk cascade theory. This method models the blade cascade as one-dimensional wave guides and describes the transmission characteristics of a rotor to be a function of the distortion wave length and the length of the rotor chord, as well as the normal design parameters. Two parametric studies on the response of a loaded rotor to inlet distortions are done for a single rotor operating at off design conditions and a number of rotors operating at their design points. Fourier series representations of arbitrary distortion wave shapes are used for comparison with experimental data.

Copyright © 1975 by ASME
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