Computer Simulation Of Random Sphere Packing In An Arbitrarily Shaped Container

IMECH-IR > 力学所知识产出(1956-2008)

	Computer Simulation Of Random Sphere Packing In An Arbitrarily Shaped Container
	Li SX; Zhao L; Liu YW(刘曰武); Li, SX (reprint author), Peking Univ, State Key Lab Turbulence & Complex Syst Study, Coll Engn, Beijing 100871, Peoples R China.
发表期刊	Cmc-Computers Materials & Continua
	2008
页码	109-118
ISSN	1546-2218
摘要	Most simulations of random sphere packing concern a cubic or cylindric container with periodic boundary, containers of other shapes are rarely studied. In this paper, a new relaxation algorithm with pre-expanding procedure for random sphere packing in an arbitrarily shaped container is presented. Boundaries of the container are simulated by overlapping spheres which covers the boundary surface of the container. We find 0.4 similar to 0.6 of the overlap rate is a proper value for boundary spheres. The algorithm begins with a random distribution of small internal spheres. Then the expansion and relaxation procedures are performed alternately to increase the packing density. The pre-expanding procedure stops when the packing density of internal spheres reaches a preset value. Following the pre-expanding procedure, the relaxation and shrinking iterations are carried out alternately to reduce the overlaps of internal spheres. The pre-expanding procedure avoids the overflow problem and gives a uniform distribution of initial spheres. Efficiency of the algorithm is increased with the cubic cell background system and double link data structure. Examples show the packing results agree well with both computational and experimental results. Packing density about 0.63 is obtained by the algorithm for random sphere packing in containers of various shapes.
关键词	Sphere Packing Random Packing Computer Simulation Relaxation Algorithm Containers Numerical-simulation Hard-spheres Particles Generation Binary Impact Mesh
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000256769800004
关键词[WOS]	NUMERICAL-SIMULATION ; HARD-SPHERES ; PARTICLES ; GENERATION ; BINARY ; IMPACT ; MESH
WOS研究方向	Engineering ; Materials Science ; Mathematics
WOS类目	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Mathematics, Interdisciplinary Applications
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/25998
专题	力学所知识产出(1956-2008)
通讯作者	Li, SX (reprint author), Peking Univ, State Key Lab Turbulence & Complex Syst Study, Coll Engn, Beijing 100871, Peoples R China.
推荐引用方式 GB/T 7714	Li SX,Zhao L,Liu YW,et al. Computer Simulation Of Random Sphere Packing In An Arbitrarily Shaped Container[J]. Cmc-Computers Materials & Continua,2008:109-118.
APA	Li SX,Zhao L,Liu YW,&Li, SX .(2008).Computer Simulation Of Random Sphere Packing In An Arbitrarily Shaped Container.Cmc-Computers Materials & Continua,109-118.
MLA	Li SX,et al."Computer Simulation Of Random Sphere Packing In An Arbitrarily Shaped Container".Cmc-Computers Materials & Continua (2008):109-118.

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