ELECTROPHORESIS OF AN ION-SELECTIVE PARTICLE IN NON-NEWTONIAN FLUIDS UNDER ELECTRIC FIELDS OF MODERATE INTENSITY
G. S. Ganchenko1, V. S. Shelistov1, V. A. Popov1, E. A. Demehin1,2
1Financial University under the Government of the Russian Federation, Moscow, Russia
2Research Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia
Keywords: electrophoresis, ion-selective particle, non-Newtonian fluid, Smoluchowski formula, numerical modeling
Abstract
The results of numerical modeling of electrophoresis of a single spherical ion-selective particle in a viscoelastic electrolyte are presented. The electrolyte behavior is described using the Oldroyd-B and FENE-CR fluid models. The study is limited to weak and moderate electric fields, corresponding to first-kind electrophoresis. The dependence of the electrophoretic velocity of the particle on polymer concentration and relaxation time is obtained.
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