Conference Proceeding

MHD model of plasma column of high current vacuum arc

Inst. of Electrophys., Acad. of Sci., Ekaterinburg
02/2000; DOI:10.1109/DEIV.2000.877288 ISBN: 0-7803-5791-4 pp.214 - 217 vol.1 In proceeding of: Discharges and Electrical Insulation in Vacuum, 2000. Proceedings. ISDEIV. XIXth International Symposium on, Volume: 1
Source: IEEE Xplore

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

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Keywords

anode areas
 
author's opinion
 
cathode region
 
critical current
 
current flows
 
high-current vacuum arc
 
Homogeneous current density
 
main areas
 
plane electrode
 
present model
 
threshold current
 
two-dimensional magnetohydrodynamic model