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
Distribution Statement : APPROVED FOR PUBLIC RELEASE