Abstract
The results of studying the surface morphology of heterogeneous cation-(MK-40) and anion-exchange (MA-40) membranes and calculating the structure of electroconvective vortices generated by the electric body force are shown. The body force and its distribution are estimated by taking into account real parameters of the membrane surface morphology. The calculations of vortices were carried out by solving the Navier-Stokes equation with the no-slip boundary condition and the preset body force distribution. It is shown that the body force induced by the flowing current can generate pairs of electroconvective vortices (electroosmosis of the second kind), where the size of induced vortices is comparable with the intermembrane gap in electrodialysis cells.
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Original Russian Text © V.I. Zabolotskii, V.V. Nikonenko, M.Kh. Urtenov, K.A. Lebedev, V.V. Bugakov, 2012, published in Elektrokhimiya, 2012, Vol. 48, No. 7, pp. 766–777.
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Zabolotskii, V.I., Nikonenko, V.V., Urtenov, M.K. et al. Electroconvection in systems with heterogeneous ion-exchange membranes. Russ J Electrochem 48, 692–703 (2012). https://doi.org/10.1134/S102319351206016X
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DOI: https://doi.org/10.1134/S102319351206016X