Surface Shape of Two-Dimensional Granular Piles

Details Surface Shape of Two-Dimensional Granular Piles Surface Shape of Two-Dimensional Granular Piles

2005-03-02

arxiv.org/abs/cond-mat/0503051v1

Stat. Mech.: Theor. Exp. 3, (2004), 1-8

Physics

Condensed Matter

Soft Condensed Matter

15 pages, 3 figures

Scientific paper

We study the surface shape of two-dimensional piles using experiments and a continuum theory for surface flows of granular materials (the BCRE equations). We first obtain an analytical solution to the BCRE equations with a simple transformation and show that the surface shapes thereby predicted are in good agreement with the experimental results. By means of such an analytical solution, we find that the formation of the curved tails at the bottom of such piles depends not only on the properties of the granular materials but also on the drift velocity of the grains within the rolling layer.

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