Electroosmotic flow through a microparallel channel with 3D wall roughness

Electrophoresis
Long ChangYanjun Sun

Abstract

In this paper, a perturbation method is introduced to study the EOF in a microparallel channel with 3D wall roughness. The corrugations of the two walls are periodic sinusoidal waves of small amplitude in two directions either in phase or half-period out of phase. Based on linearized Poisson-Boltzmann equation, Laplace equation, and the Navier-Stokes equations, the perturbation solutions of velocity, electrical potential, and volume flow rate are obtained. By using numerical computation, the influences of the wall corrugations on the mean velocity are analyzed. The variations of electrical potential, velocity profile, mean velocity, and their dependences on the wave number α and β of wall corrugations in two directions, the nondimensional electrokinetic width K, and the zeta potential ratio between the lower wall and the upper wall ς are analyzed graphically.

References

Jul 24, 1995·Physical Review Letters·A Ajdari
Apr 18, 2000·Journal of Colloid and Interface Science·H K Tsao
Nov 18, 2005·Journal of Colloid and Interface Science·Jyh-Ping HsuChur-Jen Chen
Nov 18, 2005·Journal of Colloid and Interface Science·Yuejun KangXiaoyang Huang
Nov 19, 2009·Electrophoresis·Chih-Yung WenLung-Ming Fu
May 1, 2012·Physical Review Letters·Siddhartha DasJ C T Eijkel
Jun 12, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Uddipta Ghosh, Suman Chakraborty
Sep 17, 2013·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Pranab Kumar MondalSuman Chakraborty
Oct 24, 2013·Advances in Colloid and Interface Science·Cunlu Zhao, Chun Yang

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