Investigation on a Porous Wall-Cavity System for the Mixing Enhancement at Supersonic Flows

In this study, a calculation was conducted to clarify an effect of the porous cavity on a supersonic flow field wherejetsare normally injected. Some experiments also were conducted. However, it is difficult to measure total pressure loss and the circulation between the main flow and cavity flow in the experiment. Calculation was conducted using AUSMDV scheme and the four stage Runge-Kutta scheme. As a result, some flow features were clarified. The circulation between the main flow and the cavity flow was mainly affected by the bow shock wave and dead water region. Moreover, effects of the porous cavity on the total pressure loss became clear.