Dynamics of grains in driven granular media

被引：0
作者：
Menon, N
Durian, DJ
机构：
来源：
STATISTICAL MECHANICS IN PHYSICS AND BIOLOGY | 1997年 / 463卷
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D O I：
暂无
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We use diffusing-wave spectroscopy (DWS) to study microscopic dynamics in the interior of 3-dimensional granular systems. We study two granular systems where particle motions are excited by different driving mechanisms - gravity-driven channel flow and a gas-fluidized bed. In both instances we obtain detailed information about short-time collisional dynamics such as rms velocity fluctuations, mean free paths, and collision frequencies. We also observe a slow crossover from short-time ballistic motions to long-time, grain-scale diffusive motions.
引用
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页码：313 / 318
页数：6
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