RAS Chemistry & Material ScienceКоллоидный журнал Colloid Journal

  • ISSN (Print) 0023-2912
  • ISSN (Online) 3034-543X

Electroconvection near two-layer composite microparticles

PII
S3034543XS0023291225010024-1
DOI
10.7868/S3034543X25010024
Publication type
Article
Status
Published
Authors
Volume/ Edition
Volume 87 / Issue number 1
Pages
16-23
Abstract
This paper presents the results of a numerical simulation of an electrolyte solution behavior near a spherical dielectric microparticle covered with a homogeneous ion-selective shell under the influence of an external electric field. The particle is assumed to be stationary, and the electrolyte either stays still or is pumped externally with a constant velocity in absence of the electric field. The field, in turn, generates electroosmotic flow near the particle’s surface. It is shown that concentration polarization can occur near the particle, whereas electrokinetic instability only occurs near particles with a sufficiently thick shell. When the particle’s surface charge is opposite to the one of its shell, non-stationary regimes may be observed when the shell is thin enough.
Keywords
электроконвекция электроосмос композитная частица концентрационная поляризация неустойчивость численное моделирование
Date of publication
08.12.2025
Year of publication
2025
Number of purchasers
0
Views
26

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