Electrophoresis of an ion-selective particle in non-Newtonian fluids under electric fields of moderate intensity

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.