Numerical Analysis of Heat Transfer and Fluid Flow in Plasma Spraying

Hideya Nishiyama, Masaaki Okubo, Tomoyuki Miyadera, Shin Ichi Kamiyama

Research output: Contribution to journalArticle

Abstract

Plasma jet is clean and reactive flow that has high thermal energy, velocity and various functional characteristics. It has been utilized in the plasma deposition process and in new materials synthesis. In the present paper a method of analysis based on the turbulent two-fluid model, in which the momentum and heat transfers between gas and particles are taken into account, is proposed for the plasma spraying problem. The SIMPLE method and line-by-line iterative procedure are used for the steady condition considering phase change of particles from the solid state to the molten one. Numerical examples are shown to clarify the effects of the particle diameter and particulate volume fraction and its radial distribution at the nozzle exit on the plasma spraying characteristics. Finally, the satisfied optimum condition of particles is obtained to produce the high-quality coatings.

Original languageEnglish
Pages (from-to)736-742
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume58
Issue number547
DOIs
Publication statusPublished - 1992

Keywords

  • Multiphase Flow
  • Nonequilibrium Flow
  • Numerical Analysis
  • Particles
  • Phase Change
  • Plasma Jet
  • Plasma Spraying
  • Turbulent Flow
  • Two-Fluid Model
  • k-ε Model

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Numerical Analysis of Heat Transfer and Fluid Flow in Plasma Spraying'. Together they form a unique fingerprint.

  • Cite this