Volume 100, Number 3, November 2012
|Number of page(s)||6|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||20 November 2012|
Stability of a granular layer on an inclined “fakir plane”
1 Univ Paris-Sud, Univ Paris 6, CNRS, Lab FAST - Bât. 502, Campus Univ, F-91405 Orsay, France, EU
2 Instituto de Física Aplicada, CONICET, Departamento de Física, Universidad Nacional de San Luis 5700 San Luis, Argentina
3 Grupo de Medios Porosos, CONICET, Departamento de Física, Facultad de Ingeniería, Universidad de Buenos Aires - 1063 Buenos Aires, Argentina
Received: 31 July 2012
Accepted: 19 October 2012
We present here experimental results on the effect of a forest of cylinder obstacles (nails) on the stability of a granular layer over a rough incline, in a so-called “fakir plane” configuration. The nail forest is found to increase the stability of the layer, the more for the densest array, and such an effect is recovered by a simple model taking into account the additional friction force exerted by the pillar forest onto the granular layer.
PACS: 45.70.-n – Granular systems / 45.70.Ht – Avalanches
© EPLA, 2012
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