caa a22 4500 463234936 CHVBK 20180405153253.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10404-005-0065-4 doi (NATIONALLICENCE)springer-10.1007/s10404-005-0065-4 Analysis of combined pressure-driven electroosmotic flow through square microchannels [Elektronische Daten] [Reza Monazami, Mehrdad Manzari] In this paper three-dimensional single-phase liquid flow through microchannels with a square-shaped cross-section driven by simultaneous application of pressure gradient and electroosmotic pumping mechanism is studied. The governing system of equations consists of the electric potential field and flow field equations. The solution procedure involves three steps. First, the net charge distribution on the cross-section of the microchannel is computed by solving two-dimensional Poisson-Boltzmann equation using the finite element method. Then, using the computed fluid's charge distribution, the magnitude of the resulting body force due to interaction of an external electric field with the charged fluid particles is calculated along the microchannel. In the third step, the flow equations are solved by considering three-dimensional Navier-Stokes equations with an electrokinetic body force. The computations reveal that the flow pattern in the microchannel is significantly different from the parabolic velocity profile of the laminar pressure-driven flow. The effect of the liquid bulk ionic concentration and the external electric field strength on flow patterns through the square-shaped microchannels is also investigated. Springer-Verlag, 2006 Microchannel nationallicence Electroosmotic nationallicence Electrokinetic nationallicence Electric double layer nationallicence Combined PD-EO flow nationallicence Monazami Reza Center of Excellence in Energy Conversion, Sharif University of Technology, Tehran, Iran aut Manzari Mehrdad Center of Excellence in Energy Conversion, Sharif University of Technology, Tehran, Iran aut Microfluidics and Nanofluidics Springer-Verlag 3/1(2007-02-01), 123-126 1613-4982 3:1<123 2007 3 10404 https://doi.org/10.1007/s10404-005-0065-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10404-005-0065-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Monazami Reza Center of Excellence in Energy Conversion, Sharif University of Technology, Tehran, Iran aut NATIONALLICENCE 700 1- Manzari Mehrdad Center of Excellence in Energy Conversion, Sharif University of Technology, Tehran, Iran aut NATIONALLICENCE 773 0- Microfluidics and Nanofluidics Springer-Verlag 3/1(2007-02-01), 123-126 1613-4982 3:1<123 2007 3 10404 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer