Interaction of a Plane Shock Wave with Regions of Varying Shape and Density in a Finely Divided Gas Suspension

A study has been made of the interaction between a plane shock wave in a gas or a gas suspension and regions of square and rhombiform cross sections differing from the environment in density. A high-stability monotonic scheme with small numerical dissipation was used for calculation. Comparisons with experiments on the refraction of the shock wave on the interface of a binary gas have confirmed the adequacy of the scheme. The influence of the density-ratio factor (Atwood number), the shape of inhomogeneities, and the particle size on the shock wave structure and the development of a Richtmyer–Meshkov instability has been shown.