Grad's Moment Description of a Heterogeneous Dispersed Media in the Frame of the Standard Enskog Theory

摘要

Two-phase polydispersed media appear in a wide range of engineering process and environmental problems. Therefore, the identification of equations allowing a good prediction of the behaviour of such media is an important challenge. The aim of this paper is to provide an Eulerian description for a heterogeneous suspension constituted of different solid particle species. Kinetic equations for such media have been written in previous papers [1, 2, 3] with Grad's thirteen moments method [4] to obtain an approximation of the transport equation collision integral in the frame of the Standard Enskog Theory. In this work, we are interested in the case where each particle species has its own temperature which is close to the equilibrium temperature.