Acta Phys. -Chim. Sin. ›› 2003, Vol. 19 ›› Issue (11): 1081-1084.doi: 10.3866/PKU.WHXB20031119

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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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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