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RESEARCH PAPERS

Wake Flow Stabilization by the Action of Base Bleed

[+] Author and Article Information
H. Y. Wong

Department of Aeronautics and Fluid Mechanics, University of Glasgow, Glasgow G128QQ, Scotland

J. Fluids Eng 107(3), 378-384 (Sep 01, 1985) (7 pages) doi:10.1115/1.3242496 History: Received December 15, 1983; Revised March 01, 1985; Online October 26, 2009

Abstract

Experimental investigation into the effects of base bleed on wake stabilization for the suppression of flow-induced oscillation has shown that when the bleed flow rate is increased, the initial vortices are formed downstream, thus constituting the main cause of the removal of vortex excitation from the body which has produced them. Base ejections, if unsuitably placed, however, could aggravate oscillation. In wake buffeting, the situation can be greatly improved if base bleed is introduced from the downstream body but not from the upstream body.

Copyright © 1985 by ASME
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