I. Introduction
The complex nature of gas discharge plasmas coupled with the challenges posed by experimental investigations necessitates the utilization of advanced computational tools to deepen our understanding of their underlying mechanisms. Finite-element simulations, in particular, have emerged as a popular approach, offering a powerful tool to model and analyze discharge plasmas. This capability empowers researchers to optimize novel designs for both technological applications utilizing plasma and the development of reliable insulation systems for high-voltage power system components. Noteworthy examples are more- or all-electric aircraft and all-electric ships where the incorporation of high power density and high voltage concepts introduces elevated levels of electric stress and temperatures in harsh conditions of cruising altitudes. Consequently, the development of innovative designs becomes imperative to achieve compact, cost-effective, and dependable insulation systems [1]–[10].