Measurements of Grain Motion in a Dense, Three-Dimensional Granular Fluid
Soft Condensed Matter
2016-08-31 v3 Statistical Mechanics
Abstract
We have used an NMR technique to measure the short-time, three-dimensional displacement of grains in a system of mustard seeds vibrated vertically at 15g. The technique averages over a time interval in which the grains move ballistically, giving a direct measurement of the granular temperature profile. The dense, lower portion of the sample is well described by a recent hydrodynamic theory for inelastic hard spheres. Near the free upper surface the mean free path is longer than the particle diameter and the hydrodynamic description fails.
Cite
@article{arxiv.cond-mat/0108256,
title = {Measurements of Grain Motion in a Dense, Three-Dimensional Granular Fluid},
author = {Xiaoyu Yang and Chao Huan and D. Candela and R. W. Mair and R. L. Walsworth},
journal= {arXiv preprint arXiv:cond-mat/0108256},
year = {2016}
}
Comments
4 pages, 4 figures