Density Waves in One-Dimensional Granular Flows Driven by Non-Uniform Force Field

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	Density Waves in One-Dimensional Granular Flows Driven by Non-Uniform Force Field
	Su, T ; Feng, YD ; Zhao, HW ; Huang, DC ; Sun, G
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2013
卷号	60 期号:5 页码:610
关键词	granular matter random force molecular dynamics simulation
ISSN号	0253-6102
通讯作者	Su, T (reprint author), Chinese Acad Sci, Inst Phys, Key Lab Soft Matter Phys, Beijing 100190, Peoples R China.
中文摘要	We introduce a non-uniform gravity-like force field to control the granular flow state in a quasi-one-dimensional system, and study the system by the molecular dynamics simulation. We find that the granular flow under non-uniform force field can be well described by a density wave with fixed time period if a fixed particle number condition is used. The base frequency of the density wave does not depend on the position of the flow, while both the average density and oscillation amplitude of the flow vary continuously with the position. The formation of the density wave results from the aggregation of the granules in the decelerated region and the feed-back mechanism in the fixed particle number condition.
资助信息	National Basic Research Program of China [2009CB930800]; National Natural Science Foundation of China [10875166, 11274355]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/56870]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Su, T,Feng, YD,Zhao, HW,et al. Density Waves in One-Dimensional Granular Flows Driven by Non-Uniform Force Field[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2013,60(5):610.
APA	Su, T,Feng, YD,Zhao, HW,Huang, DC,&Sun, G.(2013).Density Waves in One-Dimensional Granular Flows Driven by Non-Uniform Force Field.COMMUNICATIONS IN THEORETICAL PHYSICS,60(5),610.
MLA	Su, T,et al."Density Waves in One-Dimensional Granular Flows Driven by Non-Uniform Force Field".COMMUNICATIONS IN THEORETICAL PHYSICS 60.5(2013):610.