The Removal of the Boundary Layer of a Supersonic Flow by Means of a Slot

[+] Author and Article Information
M. Cloutier

Aerophysics Wing, Canadian Armament Research and Development Establishment, Defence Research Board, Quebec, Canada

J. Appl. Mech 30(2), 275-278 (Jun 01, 1963) (4 pages) doi:10.1115/1.3636524 History: Received January 23, 1962; Online September 16, 2011


The influence of slot opening and of suction pressure upon the mass flow through the slot and the subsequent development of the boundary layer has been studied for the case of a single transverse slot opening into a boundary layer with a displacement thickness of 0.168 in. at a free-stream Mach number of 2.92. The results show that as much as 85 percent of the mass flow in the boundary layer between the wall and the position of the slot lip enters the slot, and that this result is independent of the slot reservoir pressure, providing the latter is less than approximately twice the tunnel static pressure.

Copyright © 1963 by ASME
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