Maximum angle of stability in wet and dry spherical granular media

被引:136
作者
Albert, R [1 ]
Albert, I [1 ]
Hornbaker, D [1 ]
Schiffer, P [1 ]
Barabasi, AL [1 ]
机构
[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
关键词
D O I
10.1103/PhysRevE.56.R6271
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 demonstrate that stability criteria can be used to calculate the maximum angle of stability theta(m) of a granular medium composed of spherical particles in three dimensions and circular disks in two dimensions. The predicted angles are in good agreement with the experimental results. Furthermore, we determine the dependence of theta(m) on cohesive forces, applying the results to wet granular material by calculating the dependence of theta(m) on the liquid content of the material. We have also studied wet granular media experimentally and find good agreement between the theory and our experimental results.
引用
收藏
页码:R6271 / R6274
页数:4
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