Magnetohydrodynamic Model of Electric Arc during Contact Opening

M. Mačák, P. Vyroubal, J. Maxa

Magnetohydrodynamic Model of Electric Arc during Contact Opening

Číslo: 2/2019
Periodikum: Advance in military technology

Klíčová slova: ANSYS FLUENT, CFD, magnetohydrodynamics, plasma

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Anotace: A numerical model of an electric arc based on Magnetohydrodynamics Theory was investigated, adjusted and implemented as a user-defined model into ANSYS FLUENT. The goal of this model was to simultaneously calculate electric and magnetic fields, which is not possible with built-in ANSYS MHD model. This custom model was then applied on a problem which described opening of contacts between which an electric arc was created. The development of the arc was investigated by its temperature field. A comparison of built-in and presented model was carried out.