Triangular and uphill avalanches of a tilted sandpile

被引：10

作者：

Bouchaud J.P. ^{[1
]}

Cates M.E. ^{[2
]}

机构：

[1] Serv. de Phys. de l'Etat Condense, CEA, Ormes des Merisiers, 91191 Gif-sur-Yvette, Cedex

[2] University of Edinburgh, JCMB King's Buildings, Edinburgh EH9 3JZ, Mayfield Road

来源：

Granular Matter | 1998年 / 1卷 / 2期

关键词：

Point Source; Recent Experiment; Phenomenological Model; Surface Flow; Simple Interpretation;

D O I：

10.1007/s100350050015

中图分类号：

学科分类号：

摘要：

Recent experiments show that an avalanche initiated from a point source propagates downwards by invading a triangular shaped region. The opening angle of this triangle appears to reach 180° for a critical inclination of the pile, beyond which avalanches also propagate upwards. We propose a simple interpretation of these observations, based on an extension of a phenomenological model for surface flows.

引用

页码：101 / 103

页数：2

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