Title :
MHD model of plasma column of high current vacuum arc
Author_Institution :
Inst. of Electrophys., Acad. of Sci., Ekaterinburg, Russia
Abstract :
The paper presents a two-dimensional magnetohydrodynamic model of a high-current vacuum arc. The main areas of interest are the arc column and anode areas. Homogeneous current density and ion flows from the cathode region are assumed. The fluid and current flows between the plane electrode is analysed numerically. It shown that the present model has a threshold current, which, in the author´s opinion, is related to the critical current of the transition of the vacuum arc to the anode spot mode
Keywords :
anodes; cathodes; current density; plasma magnetohydrodynamics; vacuum arcs; MHD model; anode areas; anode spot mode; arc column; cathode region; critical current; current flow; fluid flow; high current vacuum arc; high-current vacuum arc; homogeneous current density; ion flows; plane electrode; plasma column; threshold current; two-dimensional magnetohydrodynamic model; vacuum arc; Anodes; Cathodes; Critical current; Current density; Electrodes; Magnetic analysis; Magnetohydrodynamics; Plasma density; Threshold current; Vacuum arcs;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2000. Proceedings. ISDEIV. XIXth International Symposium on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5791-4
DOI :
10.1109/DEIV.2000.877288
