Transient electromagnetic co-simulation of electrostatic air discharge

Transient electromagnetic co-simulation is used to simulate the currents in a discharging rod. The simulation model simultaneously solves Maxwell's equation and the arc resistance equations in time domain to estimate the currents and fields for a given geometry, charge voltage and arc length. The Rompe-Weizel model is used to obtain the time dependent arc resistance, and results from different simulation methods are compared to measured data.