Modeling of non-equilibrium argon-oxygen induction plasmas under atmospheric pressure

Nobuhiko Atsuchi, Masaya Shigeta, Takayuki Watanabe

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


Modeling of induction thermal plasmas has been performed to investigate chemically non-equilibrium effect for dissociation and ionization. Computations were carried out for argon-oxygen plasmas under atmospheric pressure. The thermofluid and concentration fields were obtained by solving two-dimensional modeling. This formulation was presented using higher-order approximation of the Chapman-Enskog method for the estimation of transport properties. A deviation from the equilibrium model indicates that argon-oxygen induction plasmas should be treated as non-equilibrium for dissociation and ionization. The present modeling would give the guidance for the rational design of new material processing using thermal plasmas.

Original languageEnglish
Pages (from-to)1073-1082
Number of pages10
JournalInternational Journal of Heat and Mass Transfer
Issue number5-6
Publication statusPublished - 2006 Mar


  • Argon-oxygen
  • Induction thermal plasma
  • Non-equilibrium
  • Numerical modeling


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