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| Monte Carlo方法模拟胶体沉降过程中粒子半径的影响 | |
| 引用本文： | 张慧宁 周革. Monte Carlo方法模拟胶体沉降过程中粒子半径的影响[J]. 燃料化学学报, 1998, 26(1): 79-82 |
| 作者姓名： | 张慧宁 周革 |
| 作者单位： | 中国科学院山西煤炭化学研究所煤转化国家重点实验室 |
| 摘 要： | 运用Ｍｏｎｔｅ Ｃａｒｌｏ方法模拟了粒子在重力场中扩散控制的沉降过程，获得了不同粒径下的沉降图样，并用分维进行了分析。结果表明，随着粒子半径的增大，沉降图样堆积得越来越紧密，当粒径小于４３０ｎｍ时，分维数随粒径的增大迅速增大；大于４３０ｎｍ时，分维数增长缓慢，最后趋近于２。 |
| 关 键 词： | 沉降 Monte Carlo 胶体沉降 模拟 粒子半径 半径 |
MONTE CARLO SIMULATIONS OF THE EFFECTS OF PARTICLE SIZES IN THE PROCESS OF COLLOID DEPOSITION |
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| Zhang Huining Zhou Ge Chen Songying. MONTE CARLO SIMULATIONS OF THE EFFECTS OF PARTICLE SIZES IN THE PROCESS OF COLLOID DEPOSITION[J]. Journal of Fuel Chemistry and Technology, 1998, 26(1): 79-82 | |
| Authors: | Zhang Huining Zhou Ge Chen Songying |
| Affiliation: | State Key Laboratory of Caol Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan |
| Abstract: | MonteCarlo method is used to simulate the diffusioncontrolled deposition of colloid particles under gravity The effects of the particle sizes are studied by the deposit patterns, and their differences are characterized by their density functions and fractal dimensions (D) For small particles (x<430nm), the deposit morphologies are loose and irregular, and the fractal dimensions increased rapidly with the particle size For large particles (x>430nm), the deposit morphologies become much more compact, and their fractal dimensions approach to the closest deposition (D=2) |
| Keywords: | deposition Monte Carlo method fractal dimension |
| 本文献已被 CNKI 维普 等数据库收录！ | |