Mesoscopic Theory of Granular Fluids
Statistical Mechanics
2009-10-30 v1
Abstract
Using fluctuating hydrodynamics we describe the slow build-up of long range spatial correlations in a freely evolving fluid of inelastic hard spheres. In the incompressible limit, the behavior of spatial velocity correlations (including -behavior) is governed by vorticity fluctuations only and agrees well with two-dimensional simulations up to 50 to 100 collisions per particle. The incompressibility assumption breaks down beyond a distance that diverges in the elastic limit.
Cite
@article{arxiv.cond-mat/9706079,
title = {Mesoscopic Theory of Granular Fluids},
author = {T. P. C. van Noije and M. H. Ernst and R. Brito and J. A. G. Orza},
journal= {arXiv preprint arXiv:cond-mat/9706079},
year = {2009}
}
Comments
4 pages with 3 figures, Latex. To be published in Phys.Rev.Lett