Shock wave processes in collisional gas particle mixtures

All-Russian conference on Nonlinear Waves: Theory and New Applications

Khmel, T.A.^1 ; Fedorov, A.V.^1

Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk

630090, Russia^1

关键词: Backward facing step;    Front structures;    Gas-particle mixtures;    Molecular kinetic approach;    Particle collision;    Particle suspensions;    Shock wave diffractions;    Shock-wave process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/722/1/012044/pdf
DOI  :  10.1088/1742-6596/722/1/012044

来源: IOP

【 摘 要 】

Structures and propagation of shock waves in high density particle suspensions in gas are investigated theoretically and numerically. A physical and mathematical model which takes into account integral collisions between the particles on the basis of molecular-kinetic approaches of theory of granular materials is applied. The possibility of different types of shock waves, including double front structures is revealed. The role of particle collisions in the dynamics of particle dense layer expansion under an influence of divergent shock wave and in processes of shock wave diffraction past a backward-facing step is analyzed.