Effect Of Sub-cavity On Cavity-induced Pressure Oscillations In Supersonic Flow

摘要

A computational investigation has been conducted to determine the effect of a passive control technique on cavity-induced pressure oscillations in a two-dimensional supersonic flow at Mach number 1.83 at the cavity entrance. The passive control technique is achieved by fitting a sub-cavity at the upstream region near the front wall of a square cavity. The results showed a very good attenuation of oscillations. The resultant amount of attenuation of pressure oscillations was dependent on the length of leading edge plate and also on the depth of the sub-cavity used as oscillation suppressors.