Condensed Matter Physics, 2007, vol. 10, No. 2(50), p. 151–163, English
Hydrodynamic equations for dense fluid mixtures with multistep interaction between particles
(Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Str., Lviv 79011, Ukraine; State University "Lvivska Politekhnika", 12 Bandera Str., Lviv 79013, Ukraine)
(Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Str., Lviv 79011, Ukraine)
Generalization of the kinetic equation for a dense fluid with a multistep interaction potential to the case of a dense mixture is presented. Derivation of hydrodynamic equations is performed starting with the kinetic equation for the one-particle distribution function and the transport equation for the potential energy density. Expressions for momentum and heat fluxes are obtained. The transport equation for the kinetic energy density is shown to contain a new term of the "source" type, which describes fast exchange processes between kinetic and potential energies of the system.
kinetic theory, square-well potential, energy exchange, fluid mixture, multistep interaction
05.20.Dd, 05.10.+y, 05.60.-k