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Effects of transient fluid flow and solidification on the transport of bubbles in a slab continuous casting mold

Effects of transient fluid flow and solidification on the transport of bubbles in a slab continuous casting mold
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摘要 Transient molten steel flow in a slab continuous casting mold has been calculated using large eddy simulation, considering heat transfer and solidification. The transport of bubbles in the liquid pool of the solidified shell has been considered according to the dispersed phase model. A mathematical model has been used to evaluate the influence of bubble size, casting speed, and adsorption of nonmetallic inclusions on bubble removal and bubble distribution within the solidified shell in the mold. The results show that the ratio of bubbles floating to the top surface decreases with increasing casting speed and decreasing bubble diameter. Nonmetallic inclusion adsorption has a weak effect on the bubble. Transient molten steel flow in a slab continuous casting mold has been calculated using large eddy simulation, considering heat transfer and solidification. The transport of bubbles in the liquid pool of the solidified shell has been considered according to the dispersed phase model. A mathematical model has been used to evaluate the influence of bubble size, casting speed, and adsorption of nonmetallic inclusions on bubble removal and bubble distribution within the solidified shell in the mold. The results show that the ratio of bubbles floating to the top surface decreases with increasing casting speed and decreasing bubble diameter. Nonmetallic inclusion adsorption has a weak effect on the bubble.
作者 HOU Angui XU Guodong LIU Zhongqiu LI Baokuan ZHANG Li JIANG Maofa
机构地区 Baoshan Iron & Steel Co. Northeastern University
出处 《Baosteel Technical Research》 CAS 2014年第2期12-18,共7页 宝钢技术研究（英文版）
关键词 continuous casting mold large eddy simulation SOLIDIFICATION BUBBLE continuous casting mold large eddy simulation solidification bubble
分类号 TF777 [冶金工程—钢铁冶金]
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参考文献13

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Baosteel Technical Research
2014年 第2期

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