Aeronautics and astronautics – Aircraft control
Patent
1995-11-17
1998-08-18
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft control
244199, 244130, B64C 900
Patent
active
057948879
ABSTRACT:
Means are described for controlling the asymmetry of the leeside vortices developing over a pointed object placed at an angle of attack in a flowing fluid. Unlike prior art, the stagnation point controller biases the vortices at their point of origin. Resulting devices enable rapid and precise control of vortex asymmetry. The amplitude and rate of such motion is used to control the amplitude and rate of the asymmetry. Complex types of variations in asymmetry are demonstrated. The stagnation point controller is used in inventing means of controlling the yawing and rolling moments of aircraft and other solid objects at high angle of attack in fluid flow.
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Darden, L.A., Komerath, N.M., "Vortical Flow Control Using a Moveable Stagnation Point", Bulletin of the American Physical Society, vol. 39, No. 9, Nov., 1994.
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Darden Leigh Ann
Komerath Narayanan M.
Magill John C.
Peterson Kevin G.
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