An effect of magnetic field on arc plasma flow

Pavel Kotalík, Hideya Nishiyama

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

MHD equations for electric arcs predict recirculation zones in front of electrodes of plasma torches that are consumed faster as a result. The same equations suggest that a weak applied uniform dc magnetic field parallel to the presumably axisymmetric plasma flow can remove the reverse flows, and thus protect the electrodes. As an example, results from a model for a water-stabilized plasma torch and its near-cathode region are presented. At an arc current of 400 A, an applied magnetic field of - 0.06 T completely removes the recirculation zone.

Original languageEnglish
Pages (from-to)160-161
Number of pages2
JournalIEEE Transactions on Plasma Science
Volume30
Issue number1 I
DOIs
Publication statusPublished - 2002 Feb 1

Keywords

  • Electric arcs
  • MHD equations
  • Plasma torches

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'An effect of magnetic field on arc plasma flow'. Together they form a unique fingerprint.

  • Cite this