Simulated three-component granular segregation in a rotating drum
Abstract
Discrete particle simulations are used to model segregation in granular mixtures of three different particle species in a horizontal rotating drum. Axial band formation is observed, with medium-size particles tending to be located between alternating bands of big and small particles. Partial radial segregation also appears; it precedes the axial segregation and is characterized by an inner core region richer in small particles. Axial bands are seen to merge during the long simulation runs, leading to a coarsening of the band pattern; the relocation of particles involved in one such merging event is examined. Overall, the behavior is similar to experiment and represents a generalization of what occurs in the simpler two-component mixture.
Cite
@article{arxiv.cond-mat/0703754,
title = {Simulated three-component granular segregation in a rotating drum},
author = {D. C. Rapaport},
journal= {arXiv preprint arXiv:cond-mat/0703754},
year = {2009}
}
Comments
7 pages, 11 figures (low resolution color figures only; originals at author's website http://www.ph.biu.ac.il/~rapaport/research/granular.html) [revised version contains extra figures]