A Model of the Evolution of a Particle Flow Formed as a Result of Shock-Wave Dusting in a Gaseous Environments
A. L. Gamov1,2, A. B. Georgievskaya1,2, T. V. Karsanova1,2,3
1All-Russian Scientific Research Institute of Experimental Physics, Sarov Russia
2Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Nizhny Novgorod
3Lomonosov Moscow State University, Moscow, Russia
Keywords: shock wave, hydrodynamic instability, particles, liquid, metal, radiography
Abstract
The results of numerical simulations of experiments conducted using proton radiography and synchrotron radiation to record the motion of a flow of fine metal particles in gaseous media are presented. Particle ejection occurred as a result of a shock wave acting on the free surface of metal samples with small-scale, profiled initial disturbances. Numerical simulations were performed using a developed model of particle flow evolution in a gaseous medium, based on a model of the source of shock-wave dusting of metals, based on the physics of Richtmyer-Meshkov instability, and the laws of fragmentation of a single liquid droplet in a gas flow. The proposed model is shown to be in good agreement with experimental results.
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