Fully coupled finite element modeling for accurate prediction of breakdown voltage in air at atmospheric pressure

摘要

To accurately predict the breakdown voltage in air at atmospheric pressure, this paper proposes a fully coupled finite element analysis combining the hydrodynamic diffusion-drift with the Poisson's equations. The numerical approach has been successfully applied to evaluating the breakdown voltage in a parallel-plane electrode and then the effects of photoemission and background ionization on the breakdown voltage are thoroughly investigated. The method is verified by comparison of the experimental results.