Jamming of granular flow in a two-dimensional Hopper

被引:373
作者
To, K [1 ]
Lai, PY
Pak, HK
机构
[1] Acad Sinica, Inst Phys, Taipei 115, Taiwan
[2] Natl Cent Univ, Dept Phys, Chungli 320, Taiwan
[3] Natl Cent Univ, Ctr Complex Syst, Chungli 320, Taiwan
[4] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea
关键词
D O I
10.1103/PhysRevLett.86.71
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study experimentally the jamming phenomenon of granular flow of monodisperse disks of D = 5 mm diameter in a two-dimensional hopper with opening R. The jamming probability J(d) is measured where d = R/D. We found that J(d) decreases from 1 to zero when d increases from 2 to 5. From observing the disk configurations of the arch in the jamming events, the jamming probability can be explained quantitatively by treating the arch as the trajectory of a restricted random walker.
引用
收藏
页码:71 / 74
页数:4
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