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ALTERATION IN ELECTRO-OSMOTIC FLOW THROUGH A NON-DARCY POROUS MEDIUM DUE TO MHD AND PERISTALTIC PUMPING

Volumen 22, Ausgabe 13, 2019, pp. 1639-1650
DOI: 10.1615/JPorMedia.2019026995
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ABSTRAKT

This paper aims to investigate the electro-osmotic flow of aqueous solution in a non-Darcy porous medium. The variations in electro-osmotic flow characteristics are analyzed in the presence of magneto-hydrodynamics (MHD) and peristaltic pumping. An asymmetric sinusoidal channel wall, which is moving with peristaltic wave velocity along the channel length, is considered. A lubrication approach is adopted to simplify the governing equations for fluid flow. Debye-Hückel linearization is also utilized to simplify the Poisson equations. A regular perturbation solution is obtained to analyze the effects of mobility of the medium, Helmholtz-Smoluchowski velocity, Hartmann number, and the Darcy number on electro-osmotic flow characteristics and pumping characteristics. The findings of the present study may be applicable in designing the hybrid electro-osmotic micropumps, transport phenomena in chemical engineering, and energy systems exploiting electrokinetics.

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REFERENZIERT VON
  1. Chen Xudong , Jiang Ming , Xu Zhiguo, PORE-SCALE STUDY OF HEAT AND MASS TRANSFER IN DIFFERENT PORE THROATS OF POROUS MEDIA WITH REACTIVE TRANSPORT , Journal of Porous Media, 25, 10, 2022. Crossref

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