| Issue |
MATEC Web Conf.
Volume 84, 2016
International Symposium and School of Young Scientists “Interfacial Phenomena and Heat Transfer” (IPHT 2016)
|
|
|---|---|---|
| Article Number | 00010 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.1051/matecconf/20168400010 | |
| Published online | 16 November 2016 | |
Two-dimensional numerical simulation of microscale thermoelectrokinetic instability
1 Department of Mathematical Modelling, Kuban State University, Krasnodar, 350040, Russia
2 Laboratory of Micro- and Nanoscale Electro- and Hydrodynamics for the Krasnodar Branch of Financial University, 34 Luzana st., Krasnodar, 350051, Russia
3 Department of Mathematics and Computer Science for the Krasnodar Branch of Financial University, 34 Luzana st., Krasnodar, 350051, Russia
a Corresponding author: nataly.ganchenko@gmail.com
Two-dimensional direct numerical simulation of thermoelectrokinetic instability in electrolyte bounded by semiselective surfaces was conducted for the first time. The results of numerical experiments show that the convective motion in the electrolyte takes place due to the stability loss of one-dimensional steady state solution. This motion manifested itself in two-dimensional structures similar to electroconvective rolls. What fundamentally differs is formation of thin lines connecting the membranes, where the salt concentration reaches its maximum value. Electric current in the system, obviously, will firstly flow through these lines.
© The Authors, published by EDP Sciences, 2016
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