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TECHNICAL BRIEFS

Modifications of the Ives-Liutermoza Conformal-Mapping Procedure for Turbomachinery Cascades

[+] Author and Article Information
W. J. Rae

Aerodynamic Research Department, Arvin/Calspan Advanced Technology Center, Buffalo, N.Y. 14225

J. Eng. Gas Turbines Power 106(2), 445-448 (Apr 01, 1984) (4 pages) doi:10.1115/1.3239586 History: Received December 27, 1982; Online October 15, 2009

Abstract

A conformal mapping technique, appicable to compressor and turbine cascades, is presented. The technique can be used to map the field surrounding the cascade into a rectangle, in which the image of the blade surface lies along one side of the rectangle, the image of the trailing edge is at two corners of the rectangle, and the image of downstream infinity lies at the other two corners. These features make it possible to use the mapping in several contemporary flow field analysis codes, which carry out their calculations in such a rectangular plane. The mapping produces on O-type grid in the cascade plane.

Copyright © 1984 by ASME
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