Energy Density, Heat Capacity, and Diffusion Coefficient of Nonideal Dusty Plasma

New semiempirical approximations for the energy density and heat capacity coefficient of three- dimensional dissipative systems of macroparticles interacting with screened Coulomb potential are proposed. The relation between the energy density and diffusion coefficient in such systems is considered. The analytical and numerical models are compared. Simulation is performed in a wide range of parameters typical of laboratory experiments with dusty plasma.