Integrated propulsion/lift/control system for aircraft and ship

Details Integrated propulsion/lift/control system for aircraft and ship Integrated propulsion/lift/control system for aircraft and ship

1998-08-27

1999-11-02

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and beating wing sustained

244 72, 244204, 244130, B64C 2100

Patent

active

059754621

ABSTRACT:
A new method for boundary layer energization and boundary layer propulsion or use on vehicles moving through fluids, which comprises mounting small airfoils parallel or perpendicular to the vehicle's surface, said airfoils being embedded within the said vehicle's boundary layer and juxtaposed the surface of said vehicle, said airfoils being approximately the height of the boundary layer thickness and exciting said airfoils into flapping oscillation parallel to the chord plane of said airfoils, said oscillation at a frequency up to 100 cycles per second at an amplitude up to 20 percent of the chord length of said airfoil, whereby flow separation is delayed or suppressed which enables the redesign of said vehicle.

REFERENCES:
patent: 2514639 (1950-07-01), Haack
patent: 4081155 (1978-03-01), Kuan
patent: 5209438 (1993-05-01), Wygnanski
patent: 5226618 (1993-07-01), Greenhalgh
patent: 5401196 (1995-03-01), Triantafyllou et al.
patent: 5613649 (1997-03-01), Schlinker et al.

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