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This work concerns the modeling of electrohydrodynamic phenomena in a flat duct where a corona discharge is generated by a single or multiple fine-wire electrodes. The objective is to disturb the air flow and to increase the convective heat transfer coefficient on the down wall. The coupled equations of Navier-Stokes, energy, electrodynamics and Ohm's law are modeled by the finite element method....
AC electroosmotic pumping of fluids in a microchannel with two thin coplanar electrodes, deposited on one dielectric wall and placed in an aqueous solution, is studied in this paper. Two different numerical formulations are compared. In the first one, the transport equations (mass, molar and momentum balances) for the ion concentration and Poisson equation for the electric field are solved simultaneously...
The two-dimensional electroconvection between two plates has been studied from the theoretical and numerical point of view. However, the stability of the finite amplitude solution is an open theoretical problem. Here we use two sets of numerical techniques to analyze this problem. On one hand, particle-in-cell techniques for simulating the charge distribution combined with finite elements for computing...
This paper deals with the Quincke rotation of small particles. It is usual to explain this DC electorotation looking at the action of the free charges present in the liquid which under the application of an electric field accumulate at the surface of the insulating object. Then it acquires a dipole moment in the direction opposite to that of the field. In turn the particle begins to rotate in order...
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