建立了板坯结晶器电磁搅拌过程电磁场与流场计算的三维数学模型,采用SIMPLER方法对2对极和4对极条件下的电磁场与流场进行了数值求解.结果表明:磁感应强度B和电磁力F都呈现出关于结晶器中心对称的规律;结晶器两侧每一对N、S极之间的水平面内,电磁力都呈现圆周状分布的规律;板坯宽面边缘的电磁力较大,而板坯窄面边缘和中心区域的电磁力较小;与4对极相比,2对极产生的磁感应强度和电磁力大,钢液的流速大,搅拌强度大;无结晶器电磁搅拌时,铸坯边缘的纵断面的流场主要分成四个回流区;而有结晶器电磁搅拌时,左侧的两个回流区基本消失,右侧两个回流区减小.
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