Direct numerical simulations of electrophoresis of charged colloids

Kang Kim, Yasuya Nakayama, Ryoichi Yamamoto

研究成果: Contribution to journalArticle査読

91 被引用数 (Scopus)

抄録

We propose a numerical method to simulate electrohydrodynamic phenomena in charged colloidal dispersions. This method enables us to compute the time evolutions of colloidal particles, ions, and host fluids simultaneously by solving Newton, advection-diffusion, and Navier-Stokes equations so that the electrohydrodynamic 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; however, our simulation predicts notable deviations in the case of dense dispersions.

本文言語英語
論文番号208302
ジャーナルPhysical review letters
96
20
DOI
出版ステータス出版済み - 2006

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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