ON THE KINETIC-THEORY OF RAREFIED-GAS SUSPENSIONS

The system of kinetic equations for a medium of finely dispersed parti cles in a rarefied gas is solved by the Chapman-Enskog method. The hyd rodynamic transport equations and expressions for the transport coeffi cients are obtained. The contribution of the three-body interactions t o the transport coefficients, determining the first-order corrections in the density expansion, has been calculated for a model of hard sphe res. The many-body collision contribution to the dissipative character istics of the medium is calculated under the condition that the gas-ga s collisions in the ternary and higher order collision integrals can b e neglected. We also suggest a system of effective kinetic equations w hich take into account these effects. (C) 1998 American Institute of P hysics.