A dynamical model for a thin layer of granular materials

被引：2
|
作者：
Miao, GQ [1 ]
Sui, L
Wei, RJ
机构：
[1] Nanjing Univ, State Key Lab Modern Acoust, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Inst Acoust, Nanjing 210093, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2001年 / 18卷 / 05期
基金：
澳大利亚国家健康与医学研究理事会; 加拿大健康研究院;
关键词：
D O I：
10.1088/0256-307X/18/5/325
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A dynamical model is presented for a thin layer of granular materials similar to that for shallow viscous fluids. We have obtained analytically the expressions for the "thermal expansion", dispersion relation, and dependence of instability onset on driving frequency and viscosity, which are in agreement with experiments. The numerical calculation for the nonlinear problem reproduces the experimental phenomena for a one-dimensional system.
引用
收藏
页码：698 / 700
页数：3
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