Evolution of magnetically rotating arc into large area arc plasma*
Wang Chenga), Li Wan-Wana), Zhang Xiao-Ninga), Zha Junb), Xia Wei-Donga)†
       
(a) Consecutive images of arc plasma with I = 130 A, B = 0.04 T, flow rate = 3 Nm3/h, 0.5-μs shutter, 3000 fps, and (b) typical mode of torch plasma arc with lateral gas velocity ( v ).[ 19 , 20 ]