Fluid flow control device

Details Fluid flow control device Fluid flow control device

1986-09-19

1988-04-12

Barefoot, Galen

Aeronautics and astronautics

Aircraft structure

Details

244207, 244119, B64C 2104

Patent

active

047369132

ABSTRACT:
A fluid flow control device controllably maintains attached flow in the region of a body having a contour of rapid curvature utilizing tangential fluid discharge slots, positioned just upstream from the separation line, which issue a thin jet sheet to energize the boundary layer and entrain the surrounding flow. When applied to the aft fuselage of an aircraft, the device reduces separation and vortex drag at cruise and provides control forces and moments during low speed operation of the aircraft.

REFERENCES:
patent: 2041791 (1936-05-01), Stalker
patent: 3066894 (1962-12-01), Davidson
patent: 3419232 (1968-12-01), McStay et al.
patent: 3807662 (1974-04-01), Velazquez

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