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首页> 外文期刊>ISIJ international >Numerical Study of Inclusion Removal in Steel Continuous Casting Mold Considering Interactions Between Bubbles and Inclusions
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Numerical Study of Inclusion Removal in Steel Continuous Casting Mold Considering Interactions Between Bubbles and Inclusions

机译：考虑气泡与夹杂物相互作用的钢连铸结晶器夹杂物去除数值研究

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Bubble coalescence-breakup and bubble-inclusion interaction models were implemented into Eulerian-Lagrangian models of steel liquid flow and discrete particles transport, which was applied to examine the interaction and removal of discrete bubbles and inclusions during continuous casting. Bubble distribution affected by coalescence-breakup and its connection with the inclusion removal rate were analyzed. The inclusion removal rates at different initial bubble diameters and inclusion diameters were predicted. Larger inclusions have a higher removal rate and the predicted removal rates ranging from 14% to 30% agree well with industrial experiment measurements. It is also found that smaller bubbles have a higher capacity to remove inclusions and very small bubbles may cause more production defects when it is attached to inclusions. These results show that the developed model can reasonably predict the behaviors of discrete bubbles and inclusions and their interactions in molten steel. Such a model should be useful for the operation of steel continuous casting.
机译：将气泡聚结-破裂和气泡-夹杂物相互作用模型应用到钢液流动和离散颗粒传输的欧拉-拉格朗日模型中，该模型用于检查连续铸造过程中离散气泡和夹杂物的相互作用和去除。分析了聚结破裂影响下的气泡分布及其与夹杂物去除率的关系。预测了不同初始气泡直径和夹杂物直径下的夹杂物去除率。较大的夹杂物具有较高的去除率，预计去除率介于14％至30％之间，与工业实验测量结果非常吻合。还发现较小的气泡具有较高的去除夹杂物的能力，并且当很小的气泡附着在夹杂物上时，可能引起更多的生产缺陷。这些结果表明，所开发的模型可以合理地预测钢中离散气泡和夹杂物的行为及其相互作用。这样的模型对于钢的连续铸造应该是有用的。

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