Multi-dimensional simulation of a polluted gas flow stressed by a DC positive multi-pins corona discharge reactor
M. Meziane1, O. Eichwald1, J.P. Sarrette1, O. Ducasse1 and M. Yousfi1,2
1Université de Toulouse, UPS, INPT, LAPLACE (Laboratoire Plasma et Conversion d’Energie), 118 route de Narbonne, F-31062 Toulouse Cedex 9, France
2CNRS, LAPLACE, F-31062 Toulouse, France
Abstract— This paper is devoted to the complete multi-dimensional simulation of an Atmospheric Corona Discharge Reactor (ACDR) involving a maximum of 6 pins stressed by a DC high voltage and positioned 7mm above a grounded metallic plane. The ACDR is crossed by a lateral polluted air flow including 400ppm of NO. For the maximum time scale of 10ms considered in the present work, the simulation takes into account one hundred of successive discharge/postdischarge phases. The 2D and also the 3D simulations involve the radical formation and thermal exchange between the discharges and the background gas. The results show how the successive discharges activate the flow gas and how the induced turbulence phenomena affect the redistribution of the thermal energy and the chemical kinetics inside the ACDR. The 3D simulation results are presented for the first time and are compared with the 2D results during a time scale of 1ms.
Keywords— Positive DC atmospheric corona discharge reactor simulation, pollution control, flue gas chemical kinetic simulation