Numerical Study of the Interaction Process Between a Planar Shock Wave and a Square Cavity Filled with Different Gases

摘要

While the presence of different gases inside the cavity have significant effect on the flow field evolved inside the cavity, it has negligible effect on the prevailing pressure downstream of the cavity. Therefore, if one wants to avoid a sudden pressure jump and to reduce the acting pressure inside the cavity, helium gas should be used inside the cavity.