This article is cited in 1 paper

Physics

Numerical study of the electric charge influence of the dispersed phase on the reflection parameters of the shock wave during the propagation of shock waves from sprayed media to a homogeneous gas

D. A. Tukmakov

ederal Research Center “Kazan Scientific Center of the Russian Academy of Sciences”, Kazan

Abstract: Background. The aim of this work is to study the shock-wave dynamics of electrically charged dusty medium. The effect of the electric charge of the dispersed phase on the dynamics of the carrier medium studied. The research results can used to optimize the technological processes of applying powder coatings in an electric field. Materials and methods. On the basis of a numerical solution of the equations of multiphase medium dynamics, the process of the movement of a direct shock wave from a dusty medium into a pure gas is simulated taking into account the forces of an electric nature acting on the dispersed component. As well as the force and heat interaction of the mixture components. The carrier medium is described as a viscous compressible heat-conducting gas. Results. The patterns of the shock-wave flow of a dusty medium in an internal electric field generated by a charged dispersed component of a two-phase medium revealed, and the effect of the electric charge of a dispersed phase on the intensity of the shock wave reflected from the solid surface is investigate. Conclusions. The effect of the charge of an electrically charged dusty medium is significant only for low shock wave intensities.

Keywords: multiphase medium, shock waves, Navier-Stokes equation, mathematical modeling, electrically charged medium.

UDC: 533:6, 533:9;519.688

DOI: 10.21685/2072-3040-2019-4-11