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RESEARCH PAPERS

Inviscid-Viscous Coupled Solution for Unsteady Flows Through Vibrating Blades: Part 2—Computational Results

[+] Author and Article Information
L. He, J. D. Denton

Whittle Laboratory, Cambridge University Cambridge, United Kingdom

J. Turbomach 115(1), 101-109 (Jan 01, 1993) (9 pages) doi:10.1115/1.2929193 History: Received February 20, 1991; Online June 09, 2008

Abstract

A quasi-three-dimensional inviscid-viscous coupled approached has been developed for unsteady flows around oscillating blades, as described in Part 1. To validate this method, calculations for several steady and unsteady flow cases with strong inviscid-viscous interactions are performed, and the results are compared with the corresponding experiments. Calculated results for unsteady flows around a biconvex cascade and a fan tip section highlight the necessity of including viscous effects in predictions of turbomachinery blade flutter at transonic flow conditions.

Copyright © 1993 by The American Society of Mechanical Engineers
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