Direct numerical simulation of electroconvective instability and hysteretic current-voltage response of a permselective membrane
We present a systematic, multiscale, fully detailed numerical modeling for dynamics of fluid flow and ion transport covering Ohmic, limiting, and overlimiting current regimes in conductance of ion-selective membrane. By numerically solving the Poisson-Nernst-Planck-Navier-Stokes equations, it is dem...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/75816 https://orcid.org/0000-0003-1080-4005 https://orcid.org/0000-0001-7215-1439 |
| _version_ | 1811084694819700736 |
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| author | Li, Zirui Lim, Kian Meng White, Jacob K. Han, Jongyoon Pham, Van-Sang |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Li, Zirui Lim, Kian Meng White, Jacob K. Han, Jongyoon Pham, Van-Sang |
| author_sort | Li, Zirui |
| collection | MIT |
| description | We present a systematic, multiscale, fully detailed numerical modeling for dynamics of fluid flow and ion transport covering Ohmic, limiting, and overlimiting current regimes in conductance of ion-selective membrane. By numerically solving the Poisson-Nernst-Planck-Navier-Stokes equations, it is demonstrated that the electroconvective instability, arising from the electric field acting upon the extended space charge layer, and the induced strong vortical fluid flow are the dominant factors of the overlimiting current in the planar membrane system. More importantly, at the transition between the limiting and the overlimiting current regimes, hysteresis of electric current is identified. The hysteresis demonstrates the important role of the electroconvective flow in enhancing of current in electrolyte systems with ion-selective membrane. |
| first_indexed | 2024-09-23T12:56:08Z |
| format | Article |
| id | mit-1721.1/75816 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:56:08Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/758162022-10-01T11:58:33Z Direct numerical simulation of electroconvective instability and hysteretic current-voltage response of a permselective membrane Li, Zirui Lim, Kian Meng White, Jacob K. Han, Jongyoon Pham, Van-Sang Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Singapore-MIT Alliance in Research and Technology (SMART) Singapore-MIT Alliance in Research and Technology (SMART) Pham, Van Sang Li, Zirui Lim, Kian Meng White, Jacob K. Han, Jongyoon We present a systematic, multiscale, fully detailed numerical modeling for dynamics of fluid flow and ion transport covering Ohmic, limiting, and overlimiting current regimes in conductance of ion-selective membrane. By numerically solving the Poisson-Nernst-Planck-Navier-Stokes equations, it is demonstrated that the electroconvective instability, arising from the electric field acting upon the extended space charge layer, and the induced strong vortical fluid flow are the dominant factors of the overlimiting current in the planar membrane system. More importantly, at the transition between the limiting and the overlimiting current regimes, hysteresis of electric current is identified. The hysteresis demonstrates the important role of the electroconvective flow in enhancing of current in electrolyte systems with ion-selective membrane. 2013-01-02T17:37:19Z 2013-01-02T17:37:19Z 2012-10 2012-09 Article http://purl.org/eprint/type/JournalArticle 1539-3755 1550-2376 http://hdl.handle.net/1721.1/75816 Pham, Van et al. “Direct Numerical Simulation of Electroconvective Instability and Hysteretic Current-voltage Response of a Permselective Membrane.” Physical Review E 86.4 (2012). © 2012 American Physical Society https://orcid.org/0000-0003-1080-4005 https://orcid.org/0000-0001-7215-1439 en_US http://dx.doi.org/10.1103/PhysRevE.86.046310 Physical Review E Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Li, Zirui Lim, Kian Meng White, Jacob K. Han, Jongyoon Pham, Van-Sang Direct numerical simulation of electroconvective instability and hysteretic current-voltage response of a permselective membrane |
| title | Direct numerical simulation of electroconvective instability and hysteretic current-voltage response of a permselective membrane |
| title_full | Direct numerical simulation of electroconvective instability and hysteretic current-voltage response of a permselective membrane |
| title_fullStr | Direct numerical simulation of electroconvective instability and hysteretic current-voltage response of a permselective membrane |
| title_full_unstemmed | Direct numerical simulation of electroconvective instability and hysteretic current-voltage response of a permselective membrane |
| title_short | Direct numerical simulation of electroconvective instability and hysteretic current-voltage response of a permselective membrane |
| title_sort | direct numerical simulation of electroconvective instability and hysteretic current voltage response of a permselective membrane |
| url | http://hdl.handle.net/1721.1/75816 https://orcid.org/0000-0003-1080-4005 https://orcid.org/0000-0001-7215-1439 |
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