Slowly driven sandpile formation with granular mixtures

D. A. Head and G. J. Rodgers
Phys. Rev. E 56, 1976 – Published 1 August 1997
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Abstract

We discuss a one-dimensional sandpile model with N different particle types and an infinitesimal driving rate. The parameters for the model are the N2 critical slopes for one type of particle on top of another. The model is trivial when N=1, but for N=2 we observe four broad classes of sandpile structures in different regions of the parameter space. We describe and explain the behavior of each of these classes, giving quantitative analysis wherever possible. The behavior of sandpiles with N>2 essentially consists of combinations of these four classes. We investigate the model’s robustness and highlight the key areas that any experiment designed to reproduce these results should focus on.

  • Received 3 March 1997

DOI:https://doi.org/10.1103/PhysRevE.56.1976

©1997 American Physical Society

Authors & Affiliations

D. A. Head and G. J. Rodgers

  • Department of Physics, Brunel University, Uxbridge, Middlesex UB8 3PH, United Kingdom

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Vol. 56, Iss. 2 — August 1997

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