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In this paper, a transient 3-D model of the anode activity in a high-current vacuum arc (HCVA) was established. The melting, flow, evaporation, and solidification of the anode material were included in this model. Based on this model, the thermal and flow process of the anode in an HCVA under axial magnetic fields was simulated and analyzed. Simulation results showed that the maximum anode temperature...
Based on a magnetohydrodynamic (MHD) model, a two-dimensional transient MHD model of a vacuum arc was developed. In this model, the unsteady terms in mass, momentum, and energy conservation equations, Maxwellpsilas equations, and generalized Ohmpsilas law were considered. In energy conservation equations, work done by the electrical field, the force of friction and the thermal force were considered...
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