KINETIC-MODEL OF A LOW-PRESSURE N-2-O-2 FLOWING GLOW-DISCHARGE

A self-consistent kinetic model is developed to study de flowing glow discharges in N-2/O-2 mixtures, This model includes the calculation of electron energy distribution functions and electron rate coefficients coupled with detailed vibrational kinetics of N-2 molecules, chemical kinetics taking into account a large set of neutral, excited and char ged species, interaction of N and O atoms at the discharge tube wall, and the thermal balance of the discharge, The results of this model ag ree reasonably well with the measurements of the electronic density, t he gas temperature, the reduced electric held, the vibrational tempera ture of N-2, and the concentration of O, N atoms, NO molecules, N-2(C) , N-2(+) (B), and NO(gamma) excited states, The comparison was perform ed in a N-2-O-2 discharge at pressure p = 2 Torr; for discharge curren ts I = 15, 30, and 80 mA, a flow rate Q = 100 seem, and O-2 percentage s ranging from 0 up to 100%.