Control of Condensation Shock Wave Using Porous Wall with Cavity

Abstract

Since the concept of passive control of shock-boundary layer interaction was published in 1983, many papers have been reported on the application of this technique to transonic airfoil flows. In the present paper, this technique is applied to condensation shock wave which is caused by rapid expansion of moist air in a supersonic nozzle. The effects of passive control on condensation shock wave have been experimentally investigated by a schlieren optical method and by pressure measurements. As a result, it is found that passive control is the useful technique to suppress the periodic oscillation of condensation shock wave.