Abstract:
A previously constructed kinetic model for describing the behavior of a nonideal gas is investigated. The dimensionless parameters determining when the nonideal nature of the gas has to be taken into account are estimated in more detail. It is found that the collision integral for bound particles can be integrated over the velocity space, which significantly simplifies the original system of equations and makes it possible to prove an H-theorem. The resulting system is nondimensionalized. A conservative numerical scheme is proposed for its solution.
Key words:nonideal gas, bound states, free states, Sutherland potential, H-theorem, critical temperature, equation of state, quadrature rules, conservative numerical scheme, distribution functions of molecules in free and bound states.