Tuesday 8
F. Environmental and Medical Applications
Chair: I. Adamovich, K. Satoh - Each talk is 10'+2' duration
› 12:00 - 12:15 (15min)
› Blaise
2D modeling of electro-hydrodynamics and chemical kinetic of dry and humid air flow activated by corona discharges
Olivier Eichwald  1@  , Jean-Philippe Sarrette  2@  , Olivier Ducasse  1@  , Mohammed Yousfi  2@  
1 : Laboratoire Plasma et Conversion d'Energie  (LAPLACE)  -  Website
Université Paul Sabatier [UPS] - Toulouse III, Université Paul Sabatier (UPS) - Toulouse III
118 Route de Narbonne 31062 TOULOUSE CEDEX 9 -  France
2 : Laboratoire Plasma et Conversion d'Energie  (LAPLACE)  -  Website
CNRS : UMR5213
118 Route de Narbonne 31062 TOULOUSE CEDEX 9 -  France

The present work is devoted to the 2D simulation of a point-to-plane Atmospheric Corona Discharge Reactor (ACDR) powered by a DC high voltage supply. The corona reactor is periodically crossed by thin mono filamentary streamers with a natural repetition frequency of some tens of kHz. The present study compares the results obtained in dry air and with a small amount of water vapour. The simulation involves the electro-dynamics, chemical kinetic and neutral gas hydrodynamic phenomena that influence the kinetics of the chemical species transformation. Each discharge stage lasts about one hundred of nanoseconds while the post-discharge stage occurring between two successive discharge phases lasts one hundred of microseconds. The ACDR is crossed by a lateral dry or humid air flow initially polluted with 400 ppm of NO.


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