Cold model experiment and numerical simulation of flow characteristics of multi-phase slag

Masahiro Tsuboi, Kimihisa Ito

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

In order to attain a highly efficient dephosphorization, multi-phase slags consisting of liquid and solid phases have been used for the hot-metal treatment processes.However, the viscosity of a multi-phase slag dramatically increases with the fraction of coexisting solid phase and transits to a Bingham fluid, which may cause difficulties in discharging the slag after the refining. In this study, in order to understand flow behaviors, the simulated multi-phase slag discharged from a dam was observed by a high-speed video system. The criterion for the free jet to wall flow was obtained. The travelling time of the simulated slag increased dramatically with the solid fraction in the Bingham fluid region. A three-dimensional smoothedparticle hydrodynamics simulation program for Bingham fluid was developed and its calculations were compared with the experimental observations. The simulation replicated the observed flow in the cold model experiment.

Original languageEnglish
Pages (from-to)1191-1196
Number of pages6
Journalisij international
Volume57
Issue number7
DOIs
Publication statusPublished - 2017

Keywords

  • Bingham Fluid
  • Cold Model
  • Multi-Phase Slag
  • Simulation
  • Sph Method
  • Viscosity model.

ASJC Scopus subject areas

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

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