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	Lattice Poisson-Boltzmann simulations of electroosmotic flows in charged anisotropic porous media
	Wang, Moran ; Pan, Ning ; Wang, Jinku ; Chen, Shiyi
	2010-05-10 ; 2010-05-10
关键词	electroosmotic flow anisotropic porous media lattice Poisson-Boltzmann method ELECTROKINETIC PHENOMENA BOUNDARY-CONDITIONS VELOCITY MICROCHANNELS EQUATION MODELS ELECTROCHROMATOGRAPHY ELECTROLYTES PRESSURE ARRAYS Physics, Mathematical
中文摘要	This paper presents numerical analysis of electroosmotic flows (EOF) in charged anisotropic porous media using the lattice Poisson-Boltzmann method (LPBM), which combines two sets of lattice evolution methods solving the nonlinear Poisson equation for electric potential distribution and the Navier-Stokes. equations for fluid flow respectively. Consistent boundary condition implementations are proposed for solving both the electrodynamics and the hydrodynamics on a same grid set. The anisotropic structure effects on EOF characteristics are therefore studied by modeling the electrically driven flows through ellipse arrays packed in a microchannel whose shape and orientation angle are used to control the anisotropy of porous media. The results show that flow rates increase with the axis length along the external electric field direction for a certain porosity and decrease with the angle between the semimajor axis and the bulk flow direction when the orientation angle is smaller than pi/2. After introducing random factors into the microstructures of porous media, the statistical results of flow rate show that the anisotropy of microstructure decreases the permeability of EOFs in porous media.
语种	英语 ; 英语
出版者	GLOBAL SCIENCE PRESS ; WANCHAI ; ROOM 2303, OFFICER TOWER, CONVENTION PLAZA, 1 HARBOUR ROAD, WANCHAI, HONG KONG 00000, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22496]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, Moran,Pan, Ning,Wang, Jinku,et al. Lattice Poisson-Boltzmann simulations of electroosmotic flows in charged anisotropic porous media[J],2010, 2010.
APA	Wang, Moran,Pan, Ning,Wang, Jinku,&Chen, Shiyi.(2010).Lattice Poisson-Boltzmann simulations of electroosmotic flows in charged anisotropic porous media..
MLA	Wang, Moran,et al."Lattice Poisson-Boltzmann simulations of electroosmotic flows in charged anisotropic porous media".(2010).

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