Abstract
A new passive control technique of cavity-induced pressure oscillations has been investigated numerically. A leading edge cutout fitted at the upper part of the front wall of a square cavity is studied at Mach number 1.83 at the cavity entrance. The results showed that the introduction of a cutout at the front wall of a square cavity change the flowfield in a favorable way such that some of the undesirable effects resulting from supersonic cavity were minimized. The results also showed that resultant amount of attenuation of oscillations were dependent on the depth of the cutout used as a controller of cavity-induced acoustic oscillations.
