ARC-SHOCK INTERACTION INSIDE A SUPERSONIC NOZZLE

Arc-shock interaction in a supersonic nozzle has been investigated, Fl ow separation in the thermal layer between the high-temperature are co re and cold flow generates large vortices which deform the shape of th e are core. For the current range investigated, the center of the shoc k is not sensitive to the current, but is moved upstream relative to t hat without the are. The computed features of the interaction are in a greement with the experimental observations of [2] and [3], The arcing gas is SF6.