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Combustion, Explosion and Shock Waves

2017 year, number 4

Role of Particle Collisions in Shock Wave Interaction with a Dense Spherical Layer of a Gas Suspension

T. A. Khmel', A. V. Fedorov
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Keywords: газовзвеси, ударные волны, диспергирование, столкновительная динамика, gas suspensions, shock waves, dispersion, collision dynamics


The problem of interaction of an expanding spherical shock wave with a layer of particles is considered within the framework of the model of mechanics of continuous media with due allowance for granular pressure in the dense gas suspensions. The influence of particle collisions on the shock wave expansion process is analyzed. Generation of collision pressure and formation of shock wave structures in the gas suspension are found to be the governing factors of motion of the cloud of particles at the initial stage.