The effect of gas injection on a thermal argon plasma flow in a water-cooled tube

Masakazu Kobayashi, Takuya Honda, Atsushi Kanzawa

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The effect of gas injection on an atmospheric thermal argon plasma flow in a water-cooled tube was investigated experimentally and numerically. The injection gas is argon, helium, or nitrogen. The static pressure with helium injection increases greatly because of its high thermal conductivity, while little increase occurs for nitrogen injection because of the dissociation. The increasing rate of the static pressure depends on the ratio of the momentum term to the viscosity term. The heat flux to the tube wall with gas injection changes less than that without injection. The numerical results showed variations similar to the experimental ones.

Original languageEnglish
Pages (from-to)39-54
Number of pages16
JournalPlasma Chemistry and Plasma Processing
Issue number1
Publication statusPublished - 1985 Mar 1



  • Thermal plasma
  • gas injection
  • tube flow

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Surfaces, Coatings and Films

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