Knowledge Management System of Institue of Mechanics, CAS
| 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.
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| Source Publication | Cmc-Computers Materials & Continua
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| 2008 | |
| Pages | 109-118 |
| ISSN | 1546-2218 |
| Abstract | 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. |
| Keyword | Sphere Packing Random Packing Computer Simulation Relaxation Algorithm Containers Numerical-simulation Hard-spheres Particles Generation Binary Impact Mesh |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000256769800004 |
| WOS Keyword | NUMERICAL-SIMULATION ; HARD-SPHERES ; PARTICLES ; GENERATION ; BINARY ; IMPACT ; MESH |
| WOS Research Area | Engineering ; Materials Science ; Mathematics |
| WOS Subject | Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Mathematics, Interdisciplinary Applications |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/25998 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Li, SX (reprint author), Peking Univ, State Key Lab Turbulence & Complex Syst Study, Coll Engn, Beijing 100871, Peoples R China. |
| Recommended Citation 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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