Formation of longitudinal structures in granular flows
Materials Science
2016-08-31 v1
Abstract
In the framework of the theory of partially fluidized granular flows we study the formation of longitudinal structures observed experimentally by Forterre and Pouliquen in a flow down a rough inclined plane. We show that the formation of longitudinal structures is related to the positive feedback between the fluidization rate and the lateral stress (side pressure), which leads to a convective instability. Our theory explains main experimental features, such as appearance and amplification of the structure at some distance from the outlet and non-stationary behavior of the structures.
Cite
@article{arxiv.cond-mat/0203189,
title = {Formation of longitudinal structures in granular flows},
author = {Igor S. Aranson and Lev S. Tsimring},
journal= {arXiv preprint arXiv:cond-mat/0203189},
year = {2016}
}
Comments
4 pages, 4 figures, submitted to Phys. Rev. Lett