Accession Number : AD0697179
Title : RESEARCH ON ELLIPTICAL AIRFOIL WITH JET CIRCULATION CONTROL.
Descriptive Note : Final rept.,
Corporate Author : TEXAS UNIV AUSTIN DEPT OF AEROSPACE ENGINEERING
Personal Author(s) : Yuan,S. W. ; Westkaemper,J. C. ; Kishi,J. S.
Report Date : JAN 1969
Pagination or Media Count : 86
Abstract : Results are presented from an experimental investigation of the performance characteristics of elliptical airfoils with a jet-flap. Several 18% elliptical airfoils with 12-inch chord were tested in a subsonic wind tunnel. Circulation control was provided by ejecting air from the model airfoil through spanwise slots in the trailing edge of the airfoil. Tests included models mounted with a sweep angle with the tunnel flow direction, with spanwise variation in jet slot width, and with different jet-flap angles. The results are presented in graphical form for the purpose of comparing characteristics. (Author)
Descriptors : (*AIRFOILS, CONTROL JETS), (*HELICOPTER ROTORS, *CONTROL JETS), ELLIPSOIDS, FLAPS(CONTROL SURFACES), WIND TUNNEL MODELS, MODEL TESTS, TRAILING EDGE
Subject Categories : Helicopters
Distribution Statement : APPROVED FOR PUBLIC RELEASE