Velocity Fluctuations in Electrostatically Driven Granular Media
统计力学
2016-08-31 v2 软凝聚态物质
摘要
We study experimentally the particle velocity fluctuations in an electrostatically driven dilute granular gas. The experimentally obtained velocity distribution functions have strong deviations from Maxwellian form in a wide range of parameters. We have found that the tails of the distribution functions are consistent with a stretched exponential law with typical exponents of the order 3/2. Molecular dynamic simulations shows qualitative agreement with experimental data. Our results suggest that this non-Gaussian behavior is typical for most inelastic gases with both short and long range interactions.
引用
@article{arxiv.cond-mat/0110607,
title = {Velocity Fluctuations in Electrostatically Driven Granular Media},
author = {I. S. Aranson and J. S. Olafsen},
journal= {arXiv preprint arXiv:cond-mat/0110607},
year = {2016}
}
备注
4 pages, 4 figures