Abstract
In this work, we determine precisely the electric wind velocity, produced by a direct current (DC) corona discharge in air, using three electrode geometrical configurations: ‘wire-to-plate’ (a), ‘two wires-to-plate’ (b) and ‘three wires-to-plate’ (c). Each electrode wire is subjected to the same high positive voltage while the plate is grounded. The electric wind velocity is determined through a mathematical model based on the resolution of Navier-Stokes equation, in which a source term consisting in the electro-hydrodynamic (EHD) force, already established by our group in the form of a simplified analytical expression, is used. The results found allow to compare the profile of the electric wind produced by the corona discharge for the three electrode geometrical configurations ((a), (b) and (c)).
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