Study of frequency dispersion of shear and bulk viscosity coefficients for liquid argon, krypton and xenon under different parameters of state

Abstract

Using the obtained kinetic equations for one-particle f 1 x → 1 , t and two-particle f 2 x → 1 , x → 2 , t distribution functions the frequency dispersion of shear η S ( ω) and bulk η V ( ω) viscosity coefficients of simple liquids are studied. The numerical calculations of the coefficients η S ( ω) and η V ( ω) for liquid Ar, Kr, Xe have been performed for definite potential of intermolecular interaction Φ r → and radial distribution function g r → in broad temperature T, density ρ, and frequency ω ranges. The obtained results of theoretical calculations of viscosity coefficients of these liquids are in good agreements with the existed experimental data.