Effect of eccentricity on the electroosmotic flow in an elliptic channel

機構典藏 > College of Sciences > Graduate Institute & Department of Mathematics > Journal Article > Item 987654321/115577

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Title:	Effect of eccentricity on the electroosmotic flow in an elliptic channel
Authors:	Bo-Tau Liu, Shiojenn Tseng, Jyh-Ping Hsu
Keywords:	Electroosmotic flow;Elliptic channel;Analytical solution;Mathieu functions
Date:	2015-12-15
Issue Date:	2018-11-15 12:10:33 (UTC+8)
Abstract:	The electroosmotic flow in an elliptic channel having constant surface potential (CSP) or charge density (CSCD) is considered at low potential and arbitrary double layer thickness. Analytical expressions for the flow velocity and the corresponding asymptotic results for thick double layers that are readily applicable to experimentalists are recovered. For the range of salt concentration usually encountered in practice, the mean flow velocity for the case of CSP differs both quantitatively and qualitatively from that for the case of CSCD. Using an equivalent circular channel to simulate an elliptic one is inappropriate, in general, neither is assuming electroneutrality on the channel axis even when double layer is ca. 1/3 of the equivalent channel radius.
Relation:	Journal of Colloid and Interface Science 460, p.81-86
DOI:	10.1016/j.jcis.2015.08.038
Appears in Collections:	[Graduate Institute & Department of Mathematics] Journal Article

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