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S shape of a granular pile in a rotating drum

Nicolas Taberlet1,2, Patrick Richard1, and E. John Hinch2

  • 1GMCM, Université Rennes 1, CNRS UMR 6626, Batiment 11A, 35042 Rennes, France
  • 2DAMTP, University of Cambridge, Wilberforce Road, Cambridge, CB3 0WA, United Kingdom

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Phys. Rev. E 73, 050301(R) – Published 16 May, 2006

DOI: https://doi.org/10.1103/PhysRevE.73.050301

Abstract

The shape of a granular pile in a rotating drum is investigated. Using discrete elements method (DEM) simulations we show that the “S shape” obtained for high rotation speed can be accounted for by the friction on the end plates. A theoretical model which accounts for the effect of the end plates is presented and the equation of the shape of the free surface is derived. The model reveals a dimensionless number which quantifies the influence of the end plates on the shape of the pile. Finally, the scaling laws of the system are discussed and numerical results support our conclusions.

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Outline

Information

Phys. Rev. E 73, 050301(R)– Published 16 May, 2006
  • Received 11 October 2005

© 2006 American Physical Society

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