Relative Entropy of a Freely Cooling Granular Gas
Soft Condensed Matter
2018-09-10 v3 Statistical Mechanics
Abstract
The time evolution and stationary values of the entropy per particle of a homogeneous freely cooling granular gas, relative to the maximum entropy consistent with the instantaneous translational and rotational temperatures, is analyzed by means of a Sonine approximation involving fourth-degree cumulants. The results show a rich variety of dependencies of the relative entropy on time and on the coefficients of normal and tangential restitution, including a peculiar behavior in the quasi-smooth limit.
Keywords
Cite
@article{arxiv.1207.1658,
title = {Relative Entropy of a Freely Cooling Granular Gas},
author = {Andrés Santos and Gilberto M. Kremer},
journal= {arXiv preprint arXiv:1207.1658},
year = {2018}
}
Comments
6 pages; 2 figures; contributed paper at the 28th International Symposium on Rarefied Gas Dynamics (Zaragoza, Spain, July 9-13, 2012)