Modeling of the flow, temperature and concentration fields in an arc plasma reactor with argon-nitrogen atmosphere

Agustin M. Fudolig, Hiroshi Nogami, Jun Ichiro Yagi

研究成果: Article査読

17 被引用数 (Scopus)

抄録

A mathematical formulation was developed for describing the flow behavior, temperature profile and concentration fields in pure or mixed argon and nitrogen arc plasmas impinging on a metal target inside a reactor. The simulation involves solution to conservation equations of mass, momentum, energy, k-ε model, chemical species, and current continuity. "Combined" diffusion coefficients were used in chemical species conservation to account for all species present in the plasma. An increase in the proportion of nitrogen introduced in the reactor results in higher arc velocity and temperature, reduced arc column diameter and increased heat flux imparted to the metal target. Demixing resulted to an increase of mass fraction of nitrogen at the central portion of the arc.

本文言語English
ページ(範囲)1222-1228
ページ数7
ジャーナルIsij International
36
9
DOI
出版ステータスPublished - 1996

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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