  This paper present a model of dielectric barrier discharge DBD describe and
simulate the electrical breakdown at atmospheric pressure in pure oxygen using
Comsol Multiphysics for the better understanding and explanation of physical
behaviours of the existing species in gap. For this model, we prefer to
simulate using the 1D geometry using physics-based kinetic methods. DBD have a
several applications, such as ozone generation, surface treatment, light source
and other environmental industries. This model include a numerical and chemical
model. Courant and voltage characteristics presented in this paper. Density of
existing and newly created species in gap also presented.
