دورية أكاديمية
Lattice Poisson-Boltzmann simulations of electroosmotic flows in charged anisotropic porous media
| العنوان: | Lattice Poisson-Boltzmann simulations of electroosmotic flows in charged anisotropic porous media |
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| المؤلفون: | Wang, Moran, Pan, Ning, Wang, Jinku, Chen, Shiyi |
| المساهمون: | Wang, M (reprint author), Univ Calif Davis, Dept Biol & Agr Engn, Davis, CA 95616 USA., Univ Calif Davis, Dept Biol & Agr Engn, Davis, CA 95616 USA., Johns Hopkins Univ, Dept Mech Engn, Baltimore, MD 21218 USA., Tsing Hua Univ, Sch Aerosp, Beijing 100084, Peoples R China., Peking Univ, Coll Engn, Beijing 100871, Peoples R China. |
| المصدر: | SCI |
| بيانات النشر: | communications in computational physics |
| سنة النشر: | 2007 |
| المجموعة: | Peking University Institutional Repository (PKU IR) / 北京大学机构知识库 |
| مصطلحات موضوعية: | electroosmotic flow, anisotropic porous media, lattice Poisson-Boltzmann method, ELECTROKINETIC PHENOMENA, BOUNDARY-CONDITIONS, VELOCITY, MICROCHANNELS, EQUATION, MODELS, ELECTROCHROMATOGRAPHY, ELECTROLYTES, PRESSURE, ARRAYS |
| الوصف: | 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. ; Physics, Mathematical ; SCI(E) ; 28 ; ARTICLE ; 6 ; 1055-1070 ; 2 |
| نوع الوثيقة: | journal/newspaper |
| اللغة: | English |
| تدمد: | 1815-2406 |
| العلاقة: | COMMUNICATIONS IN COMPUTATIONAL PHYSICS.2007,2,(6),1055-1070.; 972380; http://hdl.handle.net/20.500.11897/397981Test; WOS:000250540400001 |
| الإتاحة: | https://doi.org/20.500.11897/397981Test https://hdl.handle.net/20.500.11897/397981Test |
| رقم الانضمام: | edsbas.D1BCAB8A |
| قاعدة البيانات: | BASE |
| تدمد: | 18152406 |
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