抄録
We have conducted three-dimensional, time-dependent numerical simulations of arc plasma under an externally applied magnetic field in a cylindrical-shaped chamber filled with SF_6 gas to understand magnetohydrodynamic behavior of arc column. The simulation results indicate that the arc column with the externally applied magnetic field is rotated by Lorentz force, and the arc column has a swirling structure. Arc voltage is increased by applying a magnetic field.
