Title :
Numerical analysis of vacuum arc under nonuniformly distributed axial magnetic fields
Author :
Shi, Zongqian ; Jia, Shenli ; Rong, Mingzhe
Author_Institution :
State Key Lab. of Electr. Insulation & Power Equip., Xi´´an Jiaotong Univ., Shaanxi, China
fDate :
4/1/2004 12:00:00 AM
Abstract :
A two-dimensional (2-D) magnetohydrodynamics (MHD) model of free expansion interelectrode plasma of vacuum arc is developed. The model is solved by numerical method and an iteration strategy with the position of free boundary (FB) taken into account. Under various radial distributions of axial magnetic field (AMF), uniform AMF, saddle shaped AMF, and bell shaped AMF, we got self-consistent results, by which we have studied the influence of radial AMF distribution on vacuum arc.
Keywords :
iterative methods; plasma magnetohydrodynamics; vacuum arcs; 2D MHD model; bell shaped axial magnetic field; free boundary position; free expansion interelectrode plasma; iteration strategy; nonuniformly distributed axial magnetic fields; numerical analysis; saddle shaped axial magnetic field; uniform axial magnetic field; vacuum arc; Electrodes; Equations; Interrupters; Magnetic fields; Magnetohydrodynamics; Numerical analysis; Plasmas; Two dimensional displays; Vacuum arcs; Voltage; AMF; Axial magnetic field; modeling; vacuum arc;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2004.828538
