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| A Mathematical Model on Coalescence and Removal of Inclusion Particles in Continuous Casting Tundish |
| ZHANG Bangwen; DENG Kang; LEI Zuosheng; REN Zhongming |
| Shanghai Enhanced Laboratory of Ferro--Metallurgy; Shanghai University; Shanghai 200072 |
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Cite this article:
ZHANG Bangwen; DENG Kang; LEI Zuosheng; REN Zhongming. A Mathematical Model on Coalescence and Removal of Inclusion Particles in Continuous Casting Tundish. Acta Metall Sin, 2004, 40(6): 623-.
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Abstract Combing Euler framework for flow fluid and Larangian framework for particle motion, a statistic model coupling the motion, coalescence and removal of inclusion in molten melts has been developed to interpret the basic behavior of inclusion in continuous casting tundish. Numerical calculation was conducted for 3D turbulent flow field using turbulence model, then the removal efficiencies and growth rate of inclusion were statistically computed based on the random--trajectory model. The results indicate that the total removal efficiencies of 10, 20 and 30um inclusion are approximately 20%, 36% and 75% respectively, of which the attribution due to adhesion to the refractory of inclusion occupies 1/6--1/4. It is found that the growth of inclusion due to coalescence is not marked, restricted by the realistic condition in tundish.
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Received: 26 June 2003
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