高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (9): 1419.

• 论文 • 上一篇    下一篇

布朗扩散系数对胶体聚集粒子簇大小动态标度影响的Monte Carlo模拟研究

王惠, 潘荫明, 蔡遵生, 王贵昌, 赵学庄   

  1. 南开大学化学系, 天津 300071
  • 收稿日期:1998-11-24 出版日期:1999-09-24 发布日期:1999-09-24
  • 通讯作者: 赵学庄
  • 作者简介:王惠,女,35岁,博士研究生.
  • 基金资助:

    国家自然科学基金(批准号:29573109)资助课题

Monte Carlo Simulation to the Effect of the Cluster Brownian Diffusion Coefficient on the Cluster-size Dynamic Scaling

WANG Hui, PAN Yin-Ming, CAI Zun-Sheng, WANG Gui-Chang, ZHAO Xue-Zhuang   

  1. Department of Chemistry, Nankai University, Tianjin 300071, China
  • Received:1998-11-24 Online:1999-09-24 Published:1999-09-24

摘要: 通过对胶体扩散控制聚集机理的MonteCarlo模拟,表明粒子簇的布朗扩散系数与其大小和形状有关,粒子簇的大小分布可被标度.在微观或介观的层次上,揭示了表征粒子簇结构的几何形状因子在扩散控制聚集过程中对动态标度和粒子簇分布的影响.

关键词: 布朗扩散系数, 扩散控制聚集, 粒子滚动态标度, MonteCarlo方法

Abstract: The diffusion-limited aggregation mechanism was simulated by using Monte Carlo method-Brownian diffusion coefficient depends on the cluster size and morphology.Thecluster size distribution can be scalled, which agrees with experiment result.The effect of geometric morphology on the cluster size dynamic scaling and distribution was studied on the level of the microscope.

Key words: Cluster Brownian diffusion coefficient, Diffusion-limited aggregation, Clustersize dynamic scaling, Monte Carlo method

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