板坯连铸结晶器电磁搅拌对流场的影响
Effect of Mold Electromagnetic Stirring on fluid flow in Slab Continuous Casting
本研究针对某厂板坯连铸过程,建立了电磁搅拌作用下结晶器内流场计算的三维数学模型,应用Fluent有限元仿真软件,对结晶器内钢液的流场和磁场进行耦合求解,进而分析电磁搅拌对结晶器内钢液流场的影响规律。结果表明,电磁搅拌的应用影响了结晶器内钢液的流场。在水平搅拌旋流的影响下,下环流涡心上移,但下环流流股在结晶器内的整体流态无明显变化;由于电磁搅拌产生的搅拌作用,结晶器上部区域已无明显的上环流流态,整体流态由无电磁搅拌情况下垂直方向的环流逐渐向加载电磁搅拌后水平方向的环流转变。
In this study,a three-dimensional mathematical model for calculating the flow field of molten in the mold with electromagnetic stirring was established for the slab continuous casting process.The distribution of the flow field in the mold under mold electromagnetic stirring was solved by using Fluent finite element simulation software.The results showed that the application of electromagnetic stirring affects the flow field of molten steel in the mold.Under the influence of the horizontal stirred vortex,the vortex center of the lower circulation moves upward.But the overall flow pattern of the lower circulation flow strand in the mold has no obvious change.Due to the stirring effect caused by electromagnetic stirring,there is no obvious upper circulation flow pattern in the upper region of the mold,and the overall flow pattern gradually changes from the vertical circulation without electromagnetic stirring to the horizontal circulation after electromagnetic stirring is loaded.
郑甫;陈威;张立峰;朱克然;黄福祥;龚坚;刘珍童;
燕山大学机械工程学院,秦皇岛 066004;燕山大学机械工程学院,秦皇岛 066004;北方工业大学机械与材料工程学院,北京 100144;北京首钢股份有限公司, 北京 100040;北京首钢股份有限公司, 北京 100040;北京首钢股份有限公司, 北京 100040;燕山大学机械工程学院,秦皇岛 066004;
slab continuous casting mold electromagnetic stirring flow field numerical simulation
461-465 / 5
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