Smoothed profile method to simulate colloidal particles in complex fluids

Ryoichi Yamamoto, Yasuya Nakayama, Kang Kim

研究成果: Contribution to journalArticle査読

11 被引用数 (Scopus)

抄録

A new direct numerical simulation scheme, called "Smoothed Profile (SP) method," is presented. The SP method, as a direct numerical simulation of particulate flow, provides a way to couple continuum fluid dynamics with rigid-body dynamics through smoothed profile of colloidal particle. Our formulation includes extensions to colloids in multicomponent solvents such as charged colloids in electrolyte solutions. This method enables us to compute the time evolutions of colloidal particles, ions, and host fluids simultaneously by solving Newton, advection-diffusion, and NavierStokes equations so that the electro-hydrodynamic couplings can be fully taken into account. The electrophoretic mobilities of charged spherical particles are calculated in several situations. The comparisons with approximation theories show quantitative agreements for dilute dispersions without any empirical parameters.

本文言語英語
ページ(範囲)1457-1465
ページ数9
ジャーナルInternational Journal of Modern Physics C
20
9
DOI
出版ステータス出版済み - 9 2009

All Science Journal Classification (ASJC) codes

  • 統計物理学および非線形物理学
  • 数理物理学
  • 物理学および天文学(全般)
  • コンピュータ サイエンスの応用
  • 計算理論と計算数学

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