Supersonic O2-jet impingement on liquid iron with surface chemistry

Daisaku Nakazono, Ken-Ichi Abe, Michio Nishida, Kouichi Kurita

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

This paper describes numerical analysis of a supersonic O2-jet impingement on carbon-contained liquid iron under vacuum circumstances. The gas phase is assumed to be composed of O2, CO, CO2, O and C. Since gas temperature is elevated over 1 000 K in the vicinity of the surface of liquid iron, high-temperature gas effects, namely vibrational energy excitation and dissociation, are included in the analysis. Therefore, the flow field is expressed by Navier-Stokes equations consisting of mass conservation, momentum, over-all energy, vibrational energy and species mass conservation equations. Furthermore, surface reactions for O2-C and O-C encounters are included in surface boundary conditions. Cavity geometry is determined from the balance of pressure, shear stress, surface tension and liquid buoyancy. Based on the numerical results, sensitivity of mass fraction for each species to the probability of surface reaction is discussed. In addition, the effect of the surface reactions on the cavity geometry is clarified.

Original languageEnglish
Pages (from-to)91-99
Number of pages9
Journalisij international
Volume44
Issue number1
DOIs
Publication statusPublished - Jan 1 2004

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Surface reactions
Surface chemistry
Iron
Gases
Conservation
Liquids
Geometry
Excitation energy
Carbon Monoxide
Buoyancy
Navier Stokes equations
Surface tension
Shear stress
Numerical analysis
Flow fields
Momentum
Carbon
Boundary conditions
Vacuum
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Supersonic O2-jet impingement on liquid iron with surface chemistry. / Nakazono, Daisaku; Abe, Ken-Ichi; Nishida, Michio; Kurita, Kouichi.

In: isij international, Vol. 44, No. 1, 01.01.2004, p. 91-99.

Research output: Contribution to journalArticle

Nakazono, Daisaku ; Abe, Ken-Ichi ; Nishida, Michio ; Kurita, Kouichi. / Supersonic O2-jet impingement on liquid iron with surface chemistry. In: isij international. 2004 ; Vol. 44, No. 1. pp. 91-99.
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