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.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第2期162-166,共5页
Acta Metallurgica Sinica
基金
国家自然基金!19572069
关键词
冷坩埚电磁连铸
弯月面形状
数值模拟
magnetohydrodynamics , cold crucible continuous casting, meniscus shape, isoparametric transformation, numerical simulation
