Title :
Peculiarities of the plasma flow in the 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. Homogeneously distributed current density at the cathode and supersonic ion flows from the cathode region are assumed The fluid and current flows between the plane electrodes are analysed numerically. It shown that the present model has a threshold current, at which a shock wave appears in the interelectrode plasma.
Keywords :
anodes; cathodes; current density; plasma magnetohydrodynamics; supersonic flow; vacuum arcs; anode; arc column; high current vacuum arc; homogeneously distributed current density; interelectrode plasma; plane electrodes; shock wave; supersonic ion flows; threshold current; two-dimensional magnetohydrodynamic model; Anodes; Cathodes; Current density; Electrodes; Magnetic analysis; Magnetohydrodynamics; Plasma density; Shock waves; Threshold current; Vacuum arcs;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2002. 20th International Symposium on
Print_ISBN :
0-7803-7394-4
DOI :
10.1109/ISDEIV.2002.1027380
