Application of Aerodynamically Induced Prewhirl to a Small Turbocharger Compressor

[+] Author and Article Information
N. Kyrtatos, N. Watson

Department of Mechanical Engineering, Imperial College of Science and Technology, Exhibition Road, London SW7 2BX, England

J. Eng. Power 102(4), 943-950 (Oct 01, 1980) (8 pages) doi:10.1115/1.3230365 History: Received December 07, 1979; Online September 28, 2009


A design procedure is described which allows the development of an arrangement to aerodynamically impart prewhirl to the inflow of a compressor. The procedure uses compressor performance data and inducer inlet flow distributions together with a mathematical model of the aerodynamic prewhirl inducing arrangement to arrive at the parameters which completely define an arrangement suitable for a particular compressor. The application of the procedure to design an arrangement for a small turbocharger compressor is presented. The effect of the aerodynamically imparted prerotation on the compressor performance was found to be similar to that produced by inlet guide vanes.

Copyright © 1980 by ASME
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