Monte Carlo Simulation Of DC Discharges In O₂, N₂ And O₂/N₂ Mixture At Atmospheric Pressure

In this paper, the processes of DC discharges in O2, N2 and O2/N2 mixtures at atmospheric pressure have been simulated by the Monte Carlo computer simulation method. Elastic collision and inelastic collision are considered in oxygen molecule, nitrogen molecule by electron impart. The mail simulation results were as follow: (1)The variations of drift velocity and the average energy of electron with the E/N in O2 and N2 are obtained. The number of electrons for excitation, ionization, dissociation and dissociative ionization collision with the E/N and the energy of electron are analyzed emphatically. (2) The process of DC discharge in O2/N2 mixtures with the different N2 concentration has been simulated. The dependences of number of collisions with the E/N and the energy of electron are given. It is analyzed stressfully that the process of electron-molecule collision with the E/N and the energy of electron in air at atmospheric pressure. And the drift velocity and the average energy of electron in air are computed. The results obtained in this work will be of great importance to the research of discharges in atmosphere including dielectric barrier discharge at atmospheric pressure.