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RESEARCH PAPERS

A CAD Method for Centrifugal Compressor Impellers

[+] Author and Article Information
H. Krain

DFVLR, Institut fur Antriebstechnik, Cologne, West Germany

J. Eng. Gas Turbines Power 106(2), 482-488 (Apr 01, 1984) (7 pages) doi:10.1115/1.3239591 History: Received December 21, 1981; Online October 15, 2009

Abstract

A computer-aided design method (CAD) has been developed for radially ending and backswept centrifugal compressor impellers. The geometrical concept introduced for generating the impeller geometry takes care of numerical, manufacturing, as well as aerodynamic aspects. The fluid dynamic calculation method applied is based on a quasi-three-dimensional approach coupled with a boundary layer calculation method. Detailed quantitative comparisons between theoretical data and laser measurements taken within a radially ending impeller revealed predominantly good agreement. Backswept impellers of different size and shape have been designed by the approach presented.

Copyright © 1984 by ASME
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