A note on the upward and downward intruder segregation in granular media

被引：0
|
作者：
Leonardo Trujillo
Hans J. Herrmann
机构：
[1] École Supérieure de Physique et de Chimie Industrielles,Physique et Mécanique des Milieux Hétérogènes
[2] Universität Stuttgart,Institut für Computeranwendungen 1
来源：
Granular Matter | 2003年 / 5卷
关键词：
Theoretical Model; Buoyant Force; Granular Medium; Granular System; Segregation Mechanism;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The intruder segregation dependence on size and density is investigated in the framework of a hydrodynamic theoretical model for vibrated granular media. We propose a segregation mechanism based on the difference of densities between different regions of the granular system, which give origin to a buoyant force that acts on the intruder. From the analytic solution of the segregation velocity we can analyze the transition from the upward to downward intruder's movement.
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页码：85 / 89
页数：4
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