Simulation of granular jet: Is granular flow really a "perfect fluid?"
Soft Condensed Matter
2012-10-24 v6 Statistical Mechanics
Fluid Dynamics
Abstract
We perform three-dimensional simulations of a granular jet impact for both frictional and frictionless grains. Small shear stress observed in the experiment[X. Cheng et al., Phys. Rev. Lett. 99, 188001 (2007) ] is reproduced through our simulation. However, the fluid state after the impact is far from a perfect fluid, and thus, similarity between granular jets and quark gluon plasma is superficial, because the observed viscosity is finite and its value is consistent with the prediction of the kinetic theory.
Cite
@article{arxiv.1206.6932,
title = {Simulation of granular jet: Is granular flow really a "perfect fluid?"},
author = {Tomohiko G. Sano and Hisao Hayakawa},
journal= {arXiv preprint arXiv:1206.6932},
year = {2012}
}
Comments
8 pages 11 figures(9 figures: text, 2 figures: supplementary material) 2 tables. To be published in Phys. Rev. E