Continuum description of avalanches in granular media

被引：99

作者：

Aranson, IS

Tsimring, LS

机构：

[1] Argonne Natl Lab, Argonne, IL 60439 USA

[2] Univ Calif San Diego, Inst Nonlinear Sci, La Jolla, CA 92093 USA

来源：

PHYSICAL REVIEW E | 2001年 / 64卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.64.020301

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We develop a continuum description of partially fluidized granular flows. Our theory is based on the hydrodynamic equation for the flow coupled with the order parameter equation, which describes the transition between flowing and static components of the granular system. This theory captures important phenomenology recently observed in experiments with granular flows on rough inclined planes [A. Daerr and S. Douady, Nature (London) 399, 241 (099)]: layer bistability, and transition from triangular avalanches propagating downhill at small inclination angles to balloon-shaped avalanches also propagating uphill for larger angles.

引用

页码：4 / 203014

页数：4

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