Effects of a Fillet on the Flow Past a Wing-Body Junction

Measurements are presented to demonstrate the effects of a single fillet on the flow of a turbulent boundary layer past an idealized wing-body junction. The time-averaged flow structure in the vicinity of the wing and in the wake of the wing-body junction is considered, as well as the unsteadiness of the horseshoe vortex. The effects of angle of attack and approach boundary-layer thickness are also examined.