计算物理 ›› 2012, Vol. 29 ›› Issue (5): 766-774.

• 论文 • 上一篇    下一篇

局部区域粒子源与其凝聚集团关系的模拟

陈乐1, 翁甲强2   

  1. 1. 玉林师范学院物理科学与技术工程学院, 广西 玉林 537000;
    2. 广西师范大学物理科学与技术学院, 广西 桂林 541004
  • 收稿日期:2011-11-02 修回日期:2012-02-02 出版日期:2012-09-25 发布日期:2012-09-25
  • 作者简介:陈乐(1983-),男,硕士,讲师,主要从事非线性科学与分形生长的实验与模拟研究,E-mail:chen11@126.com
  • 基金资助:
    国家自然科学基金(11047003);玉林师范学院青年基金(2010YJZD16)资助项目

Simulation of Particle Aggregations with Local Area Source

CHEN Le1, WENG Jiaqiang2   

  1. 1. College of Physics Science and Technology Engineering, Yulin Normal University, Guangxi Yulin 537000, China;
    2. College of Physics Science and Technology, Guangxi Normal University, Guangxi Guilin 541004, China
  • Received:2011-11-02 Revised:2012-02-02 Online:2012-09-25 Published:2012-09-25

摘要: 利用改进的DLA模型研究由局部区域粒子源释放随机运动粒子形成的凝聚集团的生长.结果显示,该凝聚集团的生长结构与粒子源的方位有关,正对着粒子源方位的生长速度相对较快,同时集团粒子在生长平面的分布与粒子源的相对距离和相对大小有关系,根据粒子源的变化呈现一定的变化规律.该结果有助于从凝聚物的生长结构特征了解粒子源的方位、并对粒子源相对距离和相对大小进行估计.

关键词: 局部区域, 粒子源, 随机运动, 凝聚集团

Abstract: A modified DLA model is used to simulate particle aggregations formed by random particle released from a local source.It shows that growth structure of aggregations are relative to position of the particle source.Growth velocity toward particle source is faster.It is also shown that particle distribution in growth plane is related to relative distance and relative size of the particle source.A law of particle distribution depends on particle source is shown.It may help in understanding azimuth of particle source from the growth stiucture of aggregations,and to estimate relative distance and relative size of the particles source.

Key words: local area, particles source, random motion, aggregations

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