Momentum Transfer in Turbulent Separated Flow Past a Rectangular Cavity

[+] Author and Article Information
R. L. Haugen, A. M. Dhanak

Department of Mechanical Engineering, Michigan State University, East Lansing, Mich.

J. Appl. Mech 33(3), 641-646 (Sep 01, 1966) (6 pages) doi:10.1115/1.3625133 History: Received June 17, 1965; Revised November 02, 1965; Online September 15, 2011


This paper presents results of an analytical and experimental investigation aimed at describing the turbulent momentum transfer mechanism in the separated-flow region of a rectangular cavity facing an oncoming turbulent boundary layer. A flow model of the mixing region in the slot postulated on the basis of eddy diffusion in free jets gives values of velocities and drag in good agreement with the measurements. The results further point to the significant effects exerted by the oncoming boundary layer on transfer rates from the slot. Flow-visualization pictures show some interesting vortex patterns inside the cavity when height-to-width ratio is varied between values of 1 and 3.

Copyright © 1966 by ASME
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