Generalized hydrodynamics in Enskog gases

Abstract

The generalized hydrodynamic behavior of an Enskog moderately dense gas has been studied mainly through the correlation functions approach. However, the kinetic model based on the Grad's method to solve the Enskog equation seems to be a good alternative to such studies. In this work, we explore the behavior of the generalized transport coefficients and obtain several relationships between Grad's method and the usual Chapman–Enskog scheme. The calculation is developed up to a second order in the density expansion, so we can obtain the complete hydrodynamic limit, also involving the volumetric–thermal effects.