A note on the upward and downward intruder segregation in granular media
Statistical Mechanics
2007-05-23 v1 Soft Condensed Matter
Abstract
The intruder segregation dependence on size and density is investigated in the framework of a hydrodynamic theoretical model for vibrated granular media. We propose a segregation mechanism based on the difference of densities between different regions of the granular system, which give origin to a buoyant force that acts on the intruder. From the analytic solution of the segregation velocity we can analyze the transition from the upward to downward intruder's movement.
Cite
@article{arxiv.cond-mat/0211435,
title = {A note on the upward and downward intruder segregation in granular media},
author = {L. Trujillo and H. J. Herrmann},
journal= {arXiv preprint arXiv:cond-mat/0211435},
year = {2007}
}
Comments
5 pages, 4 figures, Springer-Verlag style