物理化学学报 >> 2003, Vol. 19 >> Issue (11): 1081-1084.doi: 10.3866/PKU.WHXB20031119

研究简报 上一篇    下一篇

刚球粒子碰撞频率和距离关系的计算机模拟

孙祉伟;朱如曾;李银妹;徐升华;楼立人   

  1. 中国科学技术大学选键化学实验室和物理系,合肥　230026；
  • 收稿日期:2003-04-25 修回日期:2003-07-04 发布日期:2003-11-15
  • 通讯作者: 孙祉伟 E-mail:sunzw@imech.ac.cn

Dependence of Collision Frequency on Distance between Two Hard-sphere Particles Estimated by Computer Simulation

Sun Zhi-Wei;Zhu Ru-Zeng;Li Yin-Mei;Xu Sheng-Hua;Lou Li-Ren   

  1. Open Laboratory of Bond Selective Chemistry, Department of Physics, University of Science and Technology of China, Hefei　230026；National Microgravity Laboratory;Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing　100080
  • Received:2003-04-25 Revised:2003-07-04 Published:2003-11-15
  • Contact: Sun Zhi-Wei E-mail:sunzw@imech.ac.cn

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摘要： 用Monte Carlo方法模拟了由两个刚球粒子组成的体系，得到了碰撞频率和粒子间距的定量关系.模拟结果显示，碰撞频率随着粒子间距的增大急剧下降.这一特性为文献[1]中描述的两个粒子体系的聚集过程的碰撞反应动力学提供了有用的旁证.

关键词: 碰撞频率, 模拟, 胶体

Abstract: A Monte Carlo simulation is performed to study the dependence of collision frequency on interparticle distance for a system composed of two hard-sphere particles. The simulation quantitatively shows that the collision frequency drops down sharply as the distance between two particles increases. This characteristic provides a useful evidence for the collision-reaction dynamics of aggregation process for the two-particle system described in Ref.[1].

Key words: Collision frequency, Simulation, Colloid