Accession Number : AD0783251

Title :   Experiments on an Airfoil with Oscillating Spoiler and Flap.

Descriptive Note : Final scientific rept. Oct 71-Jun 74,

Corporate Author : FRANK J SEILER RESEARCH LAB UNITED STATES AIR FORCE ACADEMY COLO

Personal Author(s) : Lang,James D.

Report Date : JUN 1974

Pagination or Media Count : 169

Abstract : At present little is known of the dynamics of a separating and reattaching flow field. This topic pertains to a range of aerodynamic problem areas such as control-surface-buzz, dynamic stalling of airfoils or wings, wing-rock and buffeting. An experimental program was performed on an airfoil model with movable fence-type spoiler and flap. Pressures at ten locations along the moded centerline, hinge-moment, spoiler height and flap motion were recorded on a tape recorder, reduced, and resolved into Fourier harmonic components. (Modified author abstract)

Descriptors :   *Airfoils, *Boundary layer control, *Spoilers, Flaps(Control surfaces), Oscillation, Flow fields, Flow separation, Data reduction

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE