English

Forced Granular Orifice Flow

Soft Condensed Matter 2009-09-07 v3

Abstract

The flow of granular material through an orifice is studied experimentally as a function of force FF pushing the flow. It is found that the flow rate increases linearly with FF -- a new, unexpected result that is in contrast to the usual view that FF, completely screened by an arch formed around the orifice, has no way of altering the rate. Employing energy balance, we show that this behavior results mainly from dissipation in the granular material.

Keywords

Cite

@article{arxiv.0908.0258,
  title  = {Forced Granular Orifice Flow},
  author = {Zheng Peng and Hepeng Zheng and Yimin Jiang},
  journal= {arXiv preprint arXiv:0908.0258},
  year   = {2009}
}

Comments

10 pages, 5 figures

R2 v1 2026-06-21T13:31:53.356Z