Simulating electrohydrodynamics in charged colloidal dispersions: A smoothed profile method

Kang Kim, Yasuya Nakayama, Ryoichi Yamamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have developed the smoothed profile method to study dynamical properties of colloidal dispersions. This method is applicable to several complex problems including electrophoresis, where hydrodynamic and electrostatic problems are coupled. We compute the fluid velocity and the electrostatics potential by solving both Navier-Stokes and Poisson equations directly. The time evolutions of the colloidal particles and the density of counter ions are then determined by solving Newton's equation of motion and advection-diffusion equation, respectively, in a consistent manner so that the electrohydrodynamic coupling can be fully taken into account. The electrophoretic mobilities of spherical colloidal particles are calculated in several situations including those in concentrated dispersions. The comparisons with theories show quantitative agreements.

Original languageEnglish
Title of host publicationFLOW DYNAMICS
Subtitle of host publicationThe Second International Conference on Flow Dynamics
Pages251-256
Number of pages6
DOIs
Publication statusPublished - May 5 2006
Externally publishedYes
EventFLOW DYNAMICS: The Second International Conference on Flow Dynamics - Sendai, Japan
Duration: Nov 16 2005Nov 18 2005

Publication series

NameAIP Conference Proceedings
Volume832
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherFLOW DYNAMICS: The Second International Conference on Flow Dynamics
CountryJapan
CitySendai
Period11/16/0511/18/05

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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