The Combined Effect of Axial Velocity Density Ratio and Aspect Ratio on Compressor Cascade Performance

[+] Author and Article Information
U. Stark

Technische Universität Braunschweig, Institut für Strömungsmechanik, Braunschweig, West Germany

H. Hoheisel

Deutsche Forschungs—und Versuchsanstalt für Luft—und Raumfahrt, Institut für Entwurfsaerodynamik, Braunschweig, Flughafen, West Germany

J. Eng. Power 103(1), 247-255 (Jan 01, 1981) (9 pages) doi:10.1115/1.3230704 History: Received January 02, 1980; Online September 28, 2009


The paper describes theoretical and experimental investigations on the combined effect of axial velocity density ratio (AVDR) and aspect ratio (AR) on compressor cascade performance in incompressible and compressible flow. The results presented demonstrate that it is the aspect ratio that defines the axial velocity distribution through the cascade at a given wall shape and contraction ratio. It is further shown that it is, in turn, the axial velocity distribution that decisively determines the local values of pressure distributions as well as the cascade overall parameters like turning angles and loss coefficients.

Copyright © 1981 by ASME
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