Abstract
A computational model for high current density arc plasmas is developed. Under the assumption of thermodynamic equilibrium the arc plasma is described as a compressible laminar fluid based on the magnetohydrodynamic (MHD) equations and the transport and thermodynamic properties of air. The arc plasma is studied in time and space on macroscopic values such as the temperature and the pressure. The simulation results are discussed and future research work is identified addressing the scientific domain of high current density arc plasmas.
Highlights
Under the assumption of thermodynamic equilibrium the arc plasma is described as a compressible laminar fluid based on the magnetohydrodynamic (MHD) equations and the transport and thermodynamic properties of air
The simulation results are discussed and future research work is identified addressing the scientific domain of high current density arc plasmas
Computational models are essential for the understanding of the physics of arc plasmas
Summary
Computational models are essential for the understanding of the physics of arc plasmas. To encapsulate the behaviour of arc plasmas in time and space several physical domains are addressed in the computational models. Promising models studying high current densities arc plasmas are embraced in [1,2,3]. Higher current densities leads to higher energy densities in the plasma and subsequently to a wider range of operating conditions. For this the phenomena in an arc plasmas are still not fully understood. To advance the understanding and motivated by the studies [1,2,3], in this paper a computational model for high current density arc plasmas for j = 1 · 108 A·m-2 is presented. The arc plasma is studied and future research work is identified
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