Rheology of a confined granular material -: art. no. 060302

被引：33
|
作者：
Ovarlez, G [1 ]
Kolb, E [1 ]
Clément, E [1 ]
机构：
[1] Univ Paris 06, Lab Milieux Desordonnes & Heterogenes, UMR7603, F-75005 Paris, France
来源：
PHYSICAL REVIEW E | 2001年 / 64卷 / 06期
关键词：
D O I：
10.1103/PhysRevE.64.060302
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 study the rheology of a granular material slowly driven in a confined geometry. The motion is characterized by a steady sliding with a resistance force increasing with the driving velocity and the surrounding relative humidity. For lower driving velocities a transition to stick-slip motion occurs, exhibiting a blocking enhancement with decreasing velocity. We propose a model to explain this behavior pointing out the leading role of friction properties between the gains and the container's boundary.
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