Shear dispersion in dense granular flows
Fluid Dynamics
2014-07-02 v1 Soft Condensed Matter
Abstract
We formulate and solve a model problem of dispersion of dense granular materials in rapid shear flow down an incline. The effective dispersivity of the depth-averaged concentration of the dispersing powder is shown to vary as the P\'eclet number squared, as in classical Taylor--Aris dispersion of molecular solutes. An extensions to generic shear profiles is presented, and possible applications to industrial and geological granular flows are noted.
Keywords
Cite
@article{arxiv.1402.6765,
title = {Shear dispersion in dense granular flows},
author = {Ivan C. Christov and Howard A. Stone},
journal= {arXiv preprint arXiv:1402.6765},
year = {2014}
}
Comments
6 pages, 2 figures, Springer svjour3 format; to appear in Granular Matter