Simulation of microdischarges in a dielectric barrier discharge

Summary form only given, as follows. The results of simulation of a streamer like microdischarge in a dielectric-barrier discharge will be presented. The simulations were done using a two-dimensional fluid model on an adaptive grid. The discharge voltages and currents have been studied for different values of dielectric capacitance. The dielectric has very little influence on the streamer development and propagation until the very last stage. When the streamer gets very close to the dielectric, sufficient charge is deposited on the dielectric, and subsequently the discharge is quenched. The radical production efficiency has not been found to depend strongly on the dielectric capacitance. Calculation will be presented for oxygen and air.