连铸用单面电磁搅拌器空间磁场的数值模拟

Numerical simulation of spatial magnetic field of single-sided electromagnetic stirrer for CC

本文导出了电磁搅拌器空间磁场定解问题的等价变分问题及二维磁场有限元方程。用有限元法计算了单面电磁搅拌器空间磁场的纵向分布、横向衰减规律以及铁芯齿槽对磁场纵向分布的影响。计算结果与对电磁搅拌器空间磁场的实测值相当一致。

In this paper,the complex equation of two-dimensional finite-elements based on a e-quivalent variation formulation were derived for the spatial magnetic field of a electromagnetic stir-rer. The longitudinal and transversal distributions of the magnetic field were obtained by numerical simulation for first-order triangular finite-elements. Computational results showed the effects of the iron core shape of the electromagnetic stirrer on the spatial distribution of the magnetic field. The spatial distribution of the magnetic field agreed with the measured results of the actual electromagnetic stirrer very well.