Energy transfer process in gas models of Lennard-Jones interactions
Abstract
We perform simulations to investigate how the energy carried by a molecule transfers to others in an equilibrium gas model. For this purpose we consider a microcanonical ensemble of equilibrium gas systems, each of them contains a tagged molecule located at the same position initially. The ensuing transfer process of the energy initially carried by the tagged molecule is then exposed in terms of the ensemble-averaged energy density distribution. In both a 2D and a 3D gas model with Lennard-Jones interactions at room temperature, it is found that the energy carried by a molecule propagates in the gas ballistically, in clear contrast with the Gaussian diffusion widely assumed in previous studies. A possible scheme of experimental study of this issue is also proposed
Keywords
Cite
@article{arxiv.1102.2665,
title = {Energy transfer process in gas models of Lennard-Jones interactions},
author = {Jinghua Yang and Yong Zhang and Jiao Wang and Hong Zhao},
journal= {arXiv preprint arXiv:1102.2665},
year = {2015}
}
Comments
5 pages,3 figure