Vortical Flow Management for Improve!/ Configuration Aerodynamics - Recent Expert«

-Hh1s paper reports recent progress 1n vortex-control applications for alleviating the adverse consequences of three-dimensional separation and vortical Interactions on slender body/swept wing configurations. Examples Include: helical separation trip to alleviate the side force due to forebody vortex asymmetry; hinged strakes to avoid vortex breakdown effects; compartmentatlon ... swept leading-edge separation to delay the pitch-up Instability; under-wlng vortex trip and vortex flaps for drag reduction at high lift; and an apex-flap trimmer to fully utilize the lift capability of trailIng-edge flaps for take off and landing of delta wings. Experimental resits on generic wind-tunnel models are presented to Illustrate the vortex-management concepts Involved . nd to Indicate their potential for enhancing the subsonic aerodynamics of supersonic-cruise type vehicles.