パルスアーク放電のMHD非定常解析

抄録

This work presents a magneto-hydrodynamic (MHD) analysis method for studying pulsed arc discharges. A set of conservation equations for mass, momentum, energy, and current is solved by the coupling of electric, magnetic, thermal and fluid dynamic effects. The method is used for the research of pulsed gas metal arc welding as an indispensable technology in various industrial fields, and lightning impulse discharge occurred in the nature, which is always considered in the design of lightning protection equipment. The kinetics of gas flow and heating, and temporal change of electromagnetic field distribution in pulsed arc discharges are reported.