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

Takayuki Watanabe, Nobuhiko Atsuchi, Masaya Shigeta

Research output: Contribution to journalArticlepeer-review

Abstract

Modeling of induction thermal plasmas has been performed to investigate chemically non-equilibrium effect for dissociation and ionization. Computations were carried out for argon-hydrogen plasmas under atmospheric pressure. The thermofluid and concentration fields were obtained by solving of 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-hydrogen induction plasmas should be treated as non-equilibrium for dissociation and ionization near the torch wall.

Original languageEnglish
Pages (from-to)4209-4216
Number of pages8
JournalThin Solid Films
Volume515
Issue number9
DOIs
Publication statusPublished - 2007 Mar 12
Externally publishedYes

Keywords

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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