Surface flows of granular materials:: a short introduction to some recent models

被引:42
作者
Aradian, A [1 ]
Raphaël, É [1 ]
de Gennes, PG [1 ]
机构
[1] Coll France, Phys Mat Condensee Lab, CNRS, URA 792, F-75231 Paris 05, France
关键词
granular materials; avalanches; surface flows;
D O I
10.1016/S1631-0705(02)01304-X
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a short review of recent theoretical descriptions of flows occuring at the surface of granular piles, and focus mainly on two models: the phenomenological 'BCRE' model and the hydrodynamic model, based on Saint-Venant equations. Both models distinguish a 'static phase' and a 'rolling' phase inside the granular packing and provide coupled equations for the evolutions of the height of each of these phases, which prove similar in both approaches. The BCRE description provides a very intuitive picture of the flow, whereas the Saint-Venant hydrodynamic description establishes a general and rigorous framework for granular flow studies. (C) 2002 Academie des sciences/Editions scientifiques et medicales Elsevier SAS.
引用
收藏
页码:187 / 196
页数:10
相关论文
共 29 条
[1]   Thick surface flows of granular materials:: Effect of the velocity profile on the avalanche amplitude [J].
Aradian, A ;
Raphaël, E ;
de Gennes, PG .
PHYSICAL REVIEW E, 1999, 60 (02) :2009-2019
[2]  
ARADIAN A, 2001, THESIS U PARIS 6
[3]   Continuum description of avalanches in granular media [J].
Aranson, IS ;
Tsimring, LS .
PHYSICAL REVIEW E, 2001, 64 (02) :4-203014
[4]  
ARANSON IS, 2001, PHYS REV E
[5]  
ARANSON IS, CONDMAT0109358
[6]  
AZANZA E, 1998, THESIS ECOLE NATL PO
[7]  
BOCQUET L, 2001, CONDMAT0112072
[8]  
BONAMY D, 2001, UNPUB PHYS REV LETT
[9]  
BONAMY D, CONDMAT0109375
[10]  
BONAMY D, 2001, UNPUB PHYS FLUIDS