Boundary effects on the angle of repose in rotating cylinders

被引:122
作者
Dury, CM
Ristow, GH
Moss, JL
Nakagawa, M
机构
[1] Univ Marburg, Fachbereich Phys, D-35032 Marburg, Germany
[2] Colorado Sch Mines, Div Engn, Golden, CO 80401 USA
来源
PHYSICAL REVIEW E | 1998年 / 57卷 / 04期
关键词
D O I
10.1103/PhysRevE.57.4491
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
The angle of repose for the flow of granular materials in a half-filled rotating drum is studied by means of experiments and computer simulations. Particles of different material properties are used to investigate the effects of the end caps on the angle of repose. By fitting the numerical results to an exponentially decaying function, we are able to calculate the characteristic range zeta of the influence of the wall. We found that zeta scales with the drum radius but does not depend on either the density or the gravitational constant. For increasing particle diameter, finite size effects are visible.
引用
收藏
页码:4491 / 4497
页数:7
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