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RESEARCH PAPERS

Laminar Boundary Layer Interaction With an Unsteady Passing Wake

[+] Author and Article Information
D. E. Paxson, R. E. Mayle

Mechanical Engineering Department, Rensselaer Polytechnic Institute, Troy, NY 12181

J. Turbomach 113(3), 419-427 (Jul 01, 1991) (9 pages) doi:10.1115/1.2927891 History: Received January 23, 1990; Online June 09, 2008

Abstract

An investigation was conducted to study the unsteady effects of a moving wake as it passes over a laminar boundary layer in a stagnation region. Arguments are presented showing that in this region, the wake-induced unsteadiness may be treated, for the most part, as an inviscid, unsteady free stream, which impresses itself on the boundary layer flow. As a result, the boundary layer equations remain valid and, for relatively small oscillations, a solution to the equations may be obtained using standard perturbation techniques. A related experiment is then described and the results are examined in light of this analytical approach.

Copyright © 1991 by The American Society of Mechanical Engineers
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