Wavelength Selection of Patterns in a Vibrated Granular Layer
SHI Xiao-Dong, JIN Guo-Jun, MA Yu-Qiang
National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093
Wavelength Selection of Patterns in a Vibrated Granular Layer
SHI Xiao-Dong;JIN Guo-Jun;MA Yu-Qiang
National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093
关键词 ：
45.70.Qj ,
47.54.+r ,
81.05.Rm
Abstract ： We present a numerical study on the pattern formation in a two-dimensional vibrated granular layer by a molecular dynamics algorithm. Through analysing the granular density distribution, we can explore the inner movement process of particles. It is confirmed that there are a dispersive regime and a saturation regime for frequency dependence, between which a critical frequency exists. It is found that there is another saturation regime for thickness dependence. The wavelength increases with increasing layer thickness, but there is a critical thickness after which the wavelength is unchanged.
Key words ：
45.70.Qj
47.54.+r
81.05.Rm
出版日期: 2003-02-01
引用本文:
SHI Xiao-Dong;JIN Guo-Jun;MA Yu-Qiang. Wavelength Selection of Patterns in a Vibrated Granular Layer
[J]. 中国物理快报, 2003, 20(2): 250-252.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2003/V20/I2/250
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2003, Vol. 20 
