PARTICLE-SIZE SEGREGATION BY SHAKING IN 2-DIMENSIONAL DISC PACKINGS

被引：43
|
作者：
JULLIEN, R
MEAKIN, P
PAVLOVITCH, A
机构：
[1] CENS,RECH MET PHYS SECT,F-91191 GIF SUR YVETTE,FRANCE
[2] UNIV OSLO,N-0316 OSLO 3,NORWAY
来源：
EUROPHYSICS LETTERS | 1993年 / 22卷 / 07期
关键词：
D O I：
10.1209/0295-5075/22/7/008
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A two-dimensional model for particle size segregation by shaking has been developed and applied to a binary mixture of discs with radius ratio PHI. The simulation results can be understood in terms of a simple theoretical model that becomes exact in the limit PHI --> infinity. When a single large disc is imbedded in a regular packing of small discs, it is shown that segregation occurs only for values of PHI above a critical value phi, which depends on the angle of repose alpha and varies between 2.993 ... and 12 when alpha varies from 30-degrees to 60-degrees.
引用
收藏
页码：523 / 528
页数：6
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