Statistical properties of pseudo-particle systems

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• 作者：Feiguo Chen ; Wei Ge
• 关键词：Pseudo-particle modeling ; Molecular dynamics ; Transport coefficient ; Chapman– ; Enskog theory
• 刊名：Particuology
• 出版年：2010
• 出版时间：August 2010
• 年：2010
• 卷：8
• 期：4
• 页码：332-342
• 全文大小：836 K

文摘

Pseudo-particle modeling (PPM), a molecular modeling method which combines time-driven algorithms and hard molecule modeling, was originally developed for simulating gas in complex multiphase systems ([Ge and Li, 2003], [Ge et al., 2005] and [Ge, 1998]). In this work, the properties of two- and three-dimensional pseudo-particle systems, namely, mean free path, compressibility factor, self-diffusion coefficient and shear viscosity, are systematically measured by using PPM. It is found that in terms of an effective diameter, the results well conform to the Chapman–Enskog theory, thus suggesting that PPM can be employed to simulate the micro- and meso-scale behavior of ordinary gas and fluid flows.