Device for regulating and recovering the boundary layer over the

Details Device for regulating and recovering the boundary layer over the Device for regulating and recovering the boundary layer over the

1974-07-02

1976-04-20

Blix, Trygve M.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

114 67R, B64C 2108

Patent

active

039513602

ABSTRACT:
In order to control the boundary layer of air over the outer surface of an airframe and to recover some of its energy, portions of this boundary layer are sucked at a multiplicity of locations distributed over this surface and thereafter discharged rearwardly as a jet contributing to propulsion. Such suction takes place through orifices having inlets directed towards the rear and the sucked flow is adjusted so as to draw off only a part of the boundary layer whose velocity relative to the airframe is but a minor fraction of the absolute velocity of the latter, thereby leaving a substantial thickness of boundary layer.

REFERENCES:
patent: 1957413 (1934-05-01), Price
patent: 2041786 (1936-05-01), Stalker
patent: 2071744 (1937-02-01), Henrikson
patent: 2406920 (1946-09-01), Stalker
patent: 2443936 (1948-06-01), Stalker
patent: 2568813 (1951-09-01), Lundberg
patent: 2742247 (1956-04-01), Lachmann
patent: 2751168 (1956-06-01), Stalker

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