Periodical Pressure-Driven Flows in Microchannel with Wall Slip Velocity and Electro-Viscous Effects
作者： Lei Wang , Jian-kang Wu
DOI: 10.1016/S1001-6058(09)60123-2
关键词: Electrokinetic phenomena 、 Flow (psychology) 、 Slip ratio 、 Microchannel 、 Viscosity 、 Electric field 、 Reynolds number 、 Flow velocity 、 Mechanics 、 Materials science 、 Mechanical engineering 、 Modelling and Simulation 、 Mechanics of Materials 、 Condensed matter physics
摘要: Abstract In a microfluidic system, the flow slip velocity on solid wall can be same order of magnitude as average in microchannel. The flow-electricity interaction complex system subjected to joint action and electro-viscosity is an important topic. An analytical solution for periodical pressure-driven two-dimensional uniform microchannel, with consideration electro-viscous effect obtained based Poisson-Boltzmann equation Electric Double Layer (EDL) Navier-Stokes equations liquid flow. analytic solutions agree well numerical solutions. results indicate that Flow-Induced Field (FIEF) strongly depend frequency Reynolds number (Re = ωh2/v), function frequency, channel size kinetic viscosity fluids. For Re 1. addition, greatly influences FIEF, particularly, when electrokinetic radius κH small. Furthermore, amplifies FIEF enhances
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Robert J Hunter, Zeta Potential in Colloid Science ,(1981)
Remmelt Pit, Hubert Hervet, Liliane Léger, Friction and slip of a simple liquid at a solid surface Tribology Letters. ,vol. 7, pp. 147- 152 ,(1999) , 10.1023/A:1019161101812
Chun Yang, Dongqing Li, Jacob H. Masliyah, Modeling forced liquid convection in rectangular microchannels with electrokinetic effects International Journal of Heat and Mass Transfer. ,vol. 41, pp. 4229- 4249 ,(1998) , 10.1016/S0017-9310(98)00125-2
Jean-Louis Barrat, Lydéric Bocquet, Large Slip Effect at a Nonwetting Fluid-Solid Interface Physical Review Letters. ,vol. 82, pp. 4671- 4674 ,(1999) , 10.1103/PHYSREVLETT.82.4671
Christian Davidson, Xiangchun Xuan, Electrokinetic energy conversion in slip nanochannels Journal of Power Sources. ,vol. 179, pp. 297- 300 ,(2008) , 10.1016/J.JPOWSOUR.2007.12.050
R Pit, H Hervet, L Leger, Direct experimental evidence of slip in hexadecane: solid interfaces Physical Review Letters. ,vol. 85, pp. 980- 983 ,(2000) , 10.1103/PHYSREVLETT.85.980
C. L. Rice, R. Whitehead, Electrokinetic Flow in a Narrow Cylindrical Capillary The Journal of Physical Chemistry. ,vol. 69, pp. 4017- 4024 ,(1965) , 10.1021/J100895A062
Edouard Brunet, Armand Ajdari, Generalized Onsager relations for electrokinetic effects in anisotropic and heterogeneous geometries Physical Review E. ,vol. 69, pp. 016306- ,(2004) , 10.1103/PHYSREVE.69.016306
Jia Ou, Blair Perot, Jonathan P. Rothstein, Laminar drag reduction in microchannels using ultrahydrophobic surfaces Physics of Fluids. ,vol. 16, pp. 4635- 4643 ,(2004) , 10.1063/1.1812011
Pierre Joseph, Patrick Tabeling, Direct measurement of the apparent slip length Physical Review E. ,vol. 71, pp. 035303- ,(2005) , 10.1103/PHYSREVE.71.035303