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RESEARCH PAPERS

The Radial-Equilibrium Equation of Turbomachinery

[+] Author and Article Information
L. H. Smith

Compressor Aerodynamic Development Unit, Advanced Engine and Technology Department, General Electric Company, Cincinnati, Ohio

J. Eng. Power 88(1), 1-12 (Jan 01, 1966) (12 pages) doi:10.1115/1.3678471 History: Received August 05, 1965; Online January 10, 2012

Abstract

An equation is derived that describes the radial variation of circumferential-average flow properties inside of a turbomachine blade row. A physical interpretation is given for each of the several terms in the equation, and the magnitudes of the terms are demonstrated with an example. Annulus taper angle is found to be rather important. The error involved in the conventional axisymmetric (infinite-blade-number) approach is shown to be more related to the loading level, e.g., the lift-coefficient level, than the number of blades. This error is found to be small for the selected example.

Copyright © 1966 by ASME
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