MHD simulation of high-current vacuum arc under different axial magnetic fields

  • Lijun Wang
  • , Shenli Jia
  • , Zongqian Shi
  • , Ling Zhang
  • , Mingzhe Rong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Based on MHD model, high current vacuum arc (HCVA) is simulated and analyzed. In this model, the influence of ion kinetic energy and viscosity is considered. With the increase of arc current, plasma flow transits from supersonic to subsonic status; so, boundary conditions of cathode and anode side have to be adjusted. First, we simulate and analyze the fundamental characteristics of HCVA. Then, we simulate and analyze the influence of nonuniform distributed AMF on HCVA characteristics. According to the simulation results, the saddle-shaped AMF can more effectively inhibit plasma loss from arc column than that of bell-shaped AMF. Comparisons between simulation results and experimental results show the lightness of model and simulation.

Original languageEnglish
Title of host publicationProceedings of the 22nd International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
Pages329-332
Number of pages4
DOIs
StatePublished - 2006
Event22nd International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV - Matsue, Japan
Duration: 25 Sep 200629 Sep 2006

Publication series

NameProceedings - International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
Volume1
ISSN (Print)1093-2941

Conference

Conference22nd International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
Country/TerritoryJapan
CityMatsue
Period25/09/0629/09/06

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