Experimental Investigation of Double-Hinged Vortex Flap Configurations

摘要

DELTA wings are poor lift generators. An often-employedndesign approach to ameliorate the low lift production is tonsharpen thewing’s leading edge.Aconsequence of the enforced flownseparation is the formation of leading-edge vortices. The vorticesninduce high surface velocities over the wing and may significantlynaugment lift, especially as the delta becomes more slender [1].nLeading-edge flaps (formed by downward rotation of a segment ofnthe wing’s leading edge) may be used to lessen the performance lossnby recovering thrust fromthe vortices by positioning themover wingnelements with a forward-facing area: so-called leading-edge vortexnflaps (LEVFs) [2].