Energy exchange in two-fraction systems of charged dust particles

A study of the processes of redistribution of stochastic kinetic energy between two fractions of dust particles with different sizes and temperatures, as well as its redistribution by degrees of freedom, is presented for conditions close to the conditions of experiments in gas-discharge plasma. The numerical simulation was carried out for two-layer ensembles and bulk clouds of charged particles in the gravity field, and for two-dimensional structures formed in the external electric fields under the influence of forces proportional to the square of dust radius. The influence of high temperatures on the energy balance in the analyzed systems is considered. A semiempirical approximation is proposed, which well describes the energy exchange in all considered cases.