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Simulation of Electroosmotic Flows in Micro- and Nanochannels Using a Lattice Boltzmann Model

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A Lattice Boltzmann Model (LBM) with the Poisson-Boltzmann equation for charge distribution is presented for the simulation of electroosmotic transport in straight rectangular micro- and nanochannels. Effects of the channel height, electrolyte concentration, surface potential, electric double-layer thickness and externally applied electric field on the velocity profile of 50–800 nm channels were studied by means of an LBM. Our results are in excellent agreement with the corresponding analytical solution and the Lattice Boltzmann Model can be used to simulate electrokinetic transport phenomena in microchannels in the presence of an externally applied electric field.
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Keywords: ELECTRICAL DOUBLE LAYER; ELECTROOSMOTIC FLOW; LATTICE BOLTZMANN MODEL; MICROCHANNEL; SURFACE POTENTIAL

Document Type: Research Article

Publication date: December 1, 2004

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  • Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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