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

页码：523 / 528

页数：6

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