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| NUMERICAL SIMULATION OF MOLTEN STEEL FLOW IN CENTRIFUGAL FLOW TUNDISH |
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| 上海大学 |
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Cite this article:
;. NUMERICAL SIMULATION OF MOLTEN STEEL FLOW IN CENTRIFUGAL FLOW TUNDISH. Acta Metall Sin, 2008, 44(10): 1203-1208 .
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Abstract ABSTRACT Flow structure and RTD curve in Centrifugal Flow Tundish was predicted by mathematical simulation method, and the results were verified with the measurement data obtained from water model. Simulation results showed that, the molten steel in the rotation chamber rotated in a horizontal pattern due to the effect of electromagnetic force, and the swirling flow will promote the inclusion collision and coalescence. Deflection characteristic of the outflow from the rotation chamber leads to the asymmetrical distribution in the flow structure of distribution chamber, thus a horizontal circumfluence was formed and it will promote the mixture of molten steel and extend the residence time. Compared with the traditional tundish, the fraction of dead volume in the Centrifugal Flow Tundish was reduced, meanwhile the fraction of plug volume and mix volume were increased, and the study on the inclusion behavior also showed that the growth rate due to the collision and floatation rate of inclusions in the Centrifugal Flow Tundish was superior to traditional tundish.
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Received: 22 January 2008
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