Khebichat, Mohammed2019-05-082019-05-082018-06-26salle des thesesms-530-44-29-01https://dspace.univ-tlemcen.dz/handle/112/14168cdin this work, we propose to numerically simulate the influnce of the concenttration of h2o and co2 on the spatio-temporal evolution of the density of certin nitrogen oxides present in the gaseous mixture (n2/o2/h2o/co2) which is subjected to crown dicsharge at atmosphéric pressure.the gas chemistry takes into account 21 species (the radicales N,o,oh, the ground-state molecules.../frnitrogen oxides*discharge crown*non-équilibrium plasma*hydrodynamic modelOxydes d'azote décharge courounne plasma hors équilibre modèle hydrodynamiqueThesis