Stall-departure-resistance enhancer imposes lesser drag penalty than nortex generators of older types. Increases lift by as much as 30 percent at angles of attack otherwise in poststall region. Device is flat plate wedge with 60 degree sweep angle and attached so it protrudes from leading edge of wing. Tip is sharp point, and edges made thin and sharp to induce good vortical flow. Applications include those intended to increase safety for broad range of aircraft, including trainers, fighters, general-aviation aircraft, and commercial transport aircraft. Nonaerospace applications where flow stall is problem under certain conditions, such as in control of separation in flow diffusers. Other applications in fluid machinery and fluid flow.
Stall-Departure-Resistance Enhancer
NASA Tech Briefs ; 16 , 1
1992-01-01
Miscellaneous
No indication
English
Unsteady aerodynamics in airplane stall-spin departure
AIAA | 1993
|Application of Current Departure Resistance Criteria to the Post-Stall Manoeuvring Envelope
British Library Conference Proceedings | 1994
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