冷坩埚电磁连铸弯月面形状的数值模拟  

NUMERICAL SIMULATION OF MENISCUS SHAPE IN COLD CRVCIBLE CONTINUOUS CASTING

作　　者：曾德鸿[1] 毛斌[1] 鄂学全[1] 

机构地区：[1]中国科学院力学研究所,北京100080

出　　处：《金属学报》2000年第2期162-166,共5页Acta Metallurgica Sinica

基　　金：国家自然基金!19572069

摘　　要：电磁连铸中弯月面与磁场耦合作用，磁场约束弯月面成一定的形状．基于磁流体力学理论，导出以感应电流为未知量的冷坩埚电磁连铸的弯月面与磁场耦合的数学模型，并采用等参变换使连续曲面近似弯月面．在与实验结果对照的基础上，计算了感应器电流强度、磁场频率、感应器位置以及冷坩埚的分片数等对弯月面形状的影响及变化趋势．Meniscus is shaped by EM field in electromagnetic continuous casting. Starting from the basic theories of magnetohydrodynamics, this paper presents theoretical and numerical model for calcula- tion of meniscus shape in cold crucible continuous casting system. Employing isoparameter transformation makes the continuous curved surface approximate to meniscus. On the basics of comparison with experiment, the effects of some parameters, such as coil current, frequency, coil prosition and slit number, on the meniscus shape are calculated.

关 键 词：冷坩埚电磁连铸 弯月面形状 数值模拟 

分 类 号：TF777[冶金工程—钢铁冶金] TG249.7[金属学及工艺—铸造]