| 微喷射粒子团簇探测算法及其应用 |
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| 引用本文： | 张颖,陈其峰,曹小林,蔡灵仓,陈栋泉,卢铁城.微喷射粒子团簇探测算法及其应用[J].计算物理,2006,23(4):441-446. |
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| 作者姓名： | 张颖 陈其峰 曹小林 蔡灵仓 陈栋泉 卢铁城 |
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| 作者单位： | 1. 四川大学物理系, 辐射物理及技术教育部重点实验室, 四川 成都 610064;2. 流体物理研究所冲击波物理与爆轰波物理实验室, 四川 绵阳 621900;3. 北京应用物理与计算数学研究所 高性能计算中心, 计算物理实验室, 北京 100088 |
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| 基金项目： | 中国工程物理研究院专项基金 |
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| 摘 要： | 在团簇多重标号技术基础上,提出了团簇探测的新算法,并以此作为大尺度二维和三维分子动力学模拟冲击加载金属材料微喷射粒子团簇分析的子程序.以二维为例描述了算法的逻辑结构,测试分析了算法的运行效率,并将其应用到二维分子动力学模拟冲击加载金属Cu和Al微喷射粒子的团簇统计分析中,对微喷射粒子团簇尺寸分布得到一些规律性认识.
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| 关 键 词： | 多重标号技术 微喷 团簇探测算法 |
| 文章编号： | 1001-246X（2006）04-0441-06 |
| 收稿时间： | 2005-03-14 |
| 修稿时间： | 2005-06-14 |
An Ejected Particle Cluster Detection Algorithm and Its Application |
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| ZHANG Ying,CHEN Qi-feng,CAO Xiao-lin,CAI Ling-cang,CHEN Dong-quan,LU Tie-cheng.An Ejected Particle Cluster Detection Algorithm and Its Application[J].Chinese Journal of Computational Physics,2006,23(4):441-446. |
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| Authors: | ZHANG Ying CHEN Qi-feng CAO Xiao-lin CAI Ling-cang CHEN Dong-quan LU Tie-cheng |
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| Institution: | 1. Department of Physics, Sichuan University, Key Laboratory of Radiation Physics and Technology, Ministry of Education, Chengdu 610064, China;2. Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Mianyang 621900, China;3. High Performance Computing Center;State Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China |
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| Abstract: | Based on the cluster multiple labeling technique, a novel cluster detection algorithm is presented as an analysis subroutine in two- and three-dimensional molecular dynamic simulations of ejecta that take place as a planar shock wave encounters a free metal surface. The algorithm is described, tested, and used to detect cluster distribution of ejecta from copper and aluminum under a shock loading. The information obtained about the size, distribution, evolution of the cluster is helpful in the understanding of ejection. |
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| Keywords: | multiple labeling technique ejection cluster detection algorithm |
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