Accession Number : AD0164634

Title :   Acoustic Wing Stall Delaying Device.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Quinn,Brian P.

Report Date : 27 NOV 1973

Pagination or Media Count : 5

Abstract : The patent relates to an apparatus for delaying the onset of wing stall in an aircraft. Acoustic resonators are positioned in the forward portion of the upper surface of the wing with a movable panel to close the resonator cavities during normal flight. The movable panels partially expose the resonator cavities to provide orifices which generate the desired acoustic signal of approximately the same frequency as in the flow field.

Descriptors :   *Boundary layer control, *Patents, Stalling, Orifices, Airfoils, Flow fields

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE