Universal features of collective interactions in hard-sphere systems at higher volume fractions

M. Tokuyama, Y. Terada, H. Yamazaki, I. Oppenheim

研究成果: Conference contribution

抄録

In order to investigate the universal features of collective behavior due to the many-body interactions, we perform two types of computer simulations on hard-sphere systems, a Brownian-dynamics simulation on polydisperse suspensions of hard spheres, where the hydrodymamic interactions between particles are neglected, and a molecular-dynamics simulation on atomic systems of hard spheres. Thus, we show that the long-time self-diffusion coefficient in atomic systems has the same form as that derived theoretically by Tokuyama and Oppenheim (TO) for the monodisperse suspension by taking into account the many-body hydrodynamic interactions, except that the singular point is now replaced by a new one. We also show that the difference between two coefficients in both systems can be well explained by the short-time self-diffusion coefficient derived theoretically for a wide range of volume fractions.

本文言語English
ホスト出版物のタイトルSlow Dynamics in Complex Systems
ホスト出版物のサブタイトル3rd International Symposium on Slow Dynamics in Complex Systems
編集者Michio Tokuyama, Irwin Oppenheim
出版社American Institute of Physics Inc.
ページ8-15
ページ数8
ISBN(電子版)0735401837
DOI
出版ステータスPublished - 2004 4月 30
イベント3rd International Symposium on Slow Dynamics in Complex Systems - Sendai, Japan
継続期間: 2003 11月 32003 11月 8

出版物シリーズ

名前AIP Conference Proceedings
708
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other3rd International Symposium on Slow Dynamics in Complex Systems
国/地域Japan
CitySendai
Period03/11/303/11/8

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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