An exploratory low-speed wind-tunnel investigation of a pneumatic technique for LEX-induced lift augmetation on a low-aspect-ratio trapezoidal wing near C sub L, MAX is reported. The technique involved lateral sheet ejection from LEX edge-slots, with emphasis on nonsymmetrical blowing to obtain incremental roll control at high angles of attack when the aileron power is declining. Preliminary experiments on a pressure instrumented semispan wing model followed by force/moment measurements on a full-span LEX-wing configuration confirmed the effectiveness of LEX blowing for lateral control improvement up to an angle of attack of 45 deg and with a momentum coefficient of less than 02.
A LEX blowing technique for post-stall lateral control of trapezoidal wings
AIAA Applied Aerodynamics Conference ; 1992 ; Palo Alto, CA, United States
1992-01-01
Aufsatz (Konferenz)
Keine Angabe
Englisch
Post-Stall Flow Control of Sharp-Edged Wings via Unsteady Blowing
British Library Conference Proceedings | 2003
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