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RESEARCH PAPERS

Sensitivity Analysis and Optimum Design Method for Reduced Rotor-Stator-Strut Flow Interaction

[+] Author and Article Information
G. Cerri

Department of Mechanics and Aeronautics, University of Rome, Rome, Italy

W. F. O’Brien

Virginia Polytechnic Institute and State University, Blacksburg, VA

J. Turbomach 111(4), 401-408 (Oct 01, 1989) (8 pages) doi:10.1115/1.3262287 History: Received September 15, 1987; Online November 09, 2009

Abstract

A potential flow model based on the Douglas–Neumann formulation that can handle interaction problems has been used to analyze the pressure distribution produced by a stator-strut system at the rotor trailing edge. A pressure disturbance sensitivity analysis of some stator and strut parameters was performed and results are discussed in both space and frequency domains. A method for pressure distribution optimization is presented and the outcome analyzed. The optimum stator-strut configuration brings about reduced potential flow disturbances. The pressure wave amplitude produced by the strut is lowered to the same order of magnitude as that induced by the stator alone.

Copyright © 1989 by ASME
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