Enskog and Enskog-Vlasov equations with a modified correlation factor and their H theorem
Phys. Rev. E 111, 065108 – Published 30 June, 2025
DOI: https://doi.org/10.1103/3jnf-mw6y
Abstract
A modification of the original Enskog equation, which is different from the so-called modified (or revised) Enskog equation, is proposed. The modification changes the correlation factor from a function of density to a functional of density in a simple form without series structure. The present modification is semiphenomenological but is generic to be adapted to a given equation of state for nonideal gases. It is shown that the H theorem can be established for the Enskog and the Enskog-Vlasov equation with the proposed modification.
Physics Subject Headings (PhySH)
Corrections
4 May, 2026
Correction: The equation previously numbered as (E5a) was incorrect and has been removed, along with corresponding text preceding it. Notation at the end of Appendix E has been modified to correlate with the removal of Eq. (E5a).
