Abstract:
A two-scale model of ion transfer in a porous medium is obtained for one-dimensional horizontal flows under the action of a pressure gradient and an external electric field by the method of homogenization. Steady equations of electroosmotic flows in flat horizontal nano-sized slits separated by thin dielectric partitions are averaged over a small-scale variable. The resultant macroequations include Poisson’s equation for the vertical component of the electric field and Onsager’s relations between flows and forces. The total horizontal flow rate of the fluid is found to depend linearly on the pressure gradient and external electric field, and the coefficients in this linear relation are calculated with the use of microequations.
Citation:
V. V. Shelukhin, Y. Amirat, “Flow of electrolytes in a porous medium”, Prikl. Mekh. Tekh. Fiz., 49:4 (2008), 162–173; J. Appl. Mech. Tech. Phys., 49:4 (2008), 655–665
\Bibitem{SheAmi08}
\by V.~V.~Shelukhin, Y.~Amirat
\paper Flow of electrolytes in a porous medium
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2008
\vol 49
\issue 4
\pages 162--173
\mathnet{http://mi.mathnet.ru/pmtf1937}
\elib{https://elibrary.ru/item.asp?id=11784360}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2008
\vol 49
\issue 4
\pages 655--665
\crossref{https://doi.org/10.1007/s10808-008-0083-6}
Linking options:
https://www.mathnet.ru/eng/pmtf1937
https://www.mathnet.ru/eng/pmtf/v49/i4/p162
This publication is cited in the following 3 articles:
I. V. Andrianov, A. G. Kolpakov, S. I. Rakin, “Obosnovanie osrednennogo zakona Dzhoulya–Lentsa dlya kompozitsionnykh materialov”, Prikl. mekh. tekhn. fiz., 65:2 (2024), 138–145
I. V. Andrianov, A. G. Kolpakov, S. I. Rakin, “JUSTIFICATION OF THE AVERAGED JOULE–LENZ LAW FOR COMPOSITE MATERIALS”, J Appl Mech Tech Phy, 65:2 (2024), 300
Mahnprit S. Jutley, Vladimir S. Ajaev, “Stability and nonlinear evolution of electrolyte films on substrates with spatially periodic charge density”, Phys. Rev. E, 98:3 (2018)