Fluid flow behavior of liquid in cylindrical vessels stirred by one or two air jets

Lifeng Zhang, Shoji Taniguchi, Kaike Cai, Ying Qu

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Based on the two-phase model (Eulerian-Eulerian model), the three dimensional fluid flow in water and that liquid steel systems stirred by one or two multiple gas jets are simulated. In the Eulerian-Eulerian two-phase model, the gas and the liquid phase are considered to be two different continuous fluids interacting with each other through the finite inter-phase areas. The exchange between the phases is represented by source terms in conversation equations. Turbulence is assumed to be a property of the liquid phase. A new turbulence modification k-ε model is introduced to consider the bubbles movement contribution to k and ε. The dispersion of phases due to turbulence is represented by introducing a diffusion term in mass conservation equation. The mathematical simulation agrees well with the experiment results. The study results indicate that the distance of two nozzles has big effect on fluid flow behavior in the vessel. Using two gas injection nozzles at the half radii of one diameter of the bottom generates a much better mixing than with one nozzle under the condition of the same total gas flow rate.

Original languageEnglish
Pages (from-to)170-177
Number of pages8
JournalJournal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)
Volume7
Issue number3
Publication statusPublished - 2000 Sep 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials
  • Mechanical Engineering
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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