In this paper a new two-dimensional model is presented for the simulation of Trichel pulses in negative corona in a point-plane configuration. Both radial and axial components of the electric field are considered and it is assumed that three ionic species exist in the air gap: electrons, and positive and negative oxygen ions. The Poisson equation is solved for the electric field in the gap and three continuity equations are solved for modeling the transport of the charge species in the air gap. The Finite Element Method (FEM) is used for solving the Poisson equation and a combined Flux Corrected Transport-FEM is used for the charge transport equations. The algorithm is able to reproduce pulses and shows that with increased voltage the pulse frequency decreases in agreement with previously reported experimental data.
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