Oscillating air jets on aerodynamic surfaces

Details Oscillating air jets on aerodynamic surfaces Oscillating air jets on aerodynamic surfaces

1997-06-05

1999-08-17

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

With fluid passage in working member communicating with...

Both inlet and outlet to working fluid

416 90A, 416 3, 416 42, 416500, 415119, 244130, 244199, 244204, B64C 2704

Patent

active

059384042

ABSTRACT:
An active control device for use on an aerodynamic structure is provided. The aerodynamic structure includes an outer aerodynamic skin and an interior volume, wherein the outer aerodynamic skin surrounds the interior volume. The active control device includes at least one aperture disposed on the outer aerodynamic skin and a diaphragm disposed in the interior volume of the aerodynamic structure. The at least one aperture connects the outer aerodynamic skin to the interior volume, and the diaphragm in the interior volume is movable between a first position and a second position. Movement of the diaphragm from the first position to the second position pushes air through the at least one aperture and out of the interior volume. Movement of the diaphragm from the second position to the first position draws air through the at least one aperture and into the interior volume. The diaphragm may be circular, or may be oval-shaped.

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