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Aerodynamic focusing of inertial particles in the shock-wave intersection region. (English. Russian original) Zbl 1354.76201

Fluid Dyn. 42, No. 4, 603-611 (2007); translation from Izv. Ross. Akad. Nauk, Mekh. Zhidk. Gaza 42, No. 4, 107-116 (2007).
Summary: The flow structure in the region of intersection of two stationary plane shock waves in a dusty gas is investigated. The regular symmetric and asymmetric shock interaction and the symmetric Mach interaction are considered. For a small particle mass concentration, on the basis of numerical calculations using the full Lagrangian approach it is shown that behind the shock wave intersection point a long thin region is formed, in which the particle trajectories intersect and the particle concentration sharply increases. A parametric study of the particle concentration distributions in this region is performed and the range of governing parameters on which the particle focusing effect is maximal is found.

MSC:

76T15 Dusty-gas two-phase flows
76L05 Shock waves and blast waves in fluid mechanics
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