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应用描述结晶器电磁制动过程的三维流动数学模型,并利用所开发的计算程序MOLD-EMBR 3D1.0进行了数值模拟.结果表明:电磁制动能明显减缓钢水主流股的流速,缓解对铸坯窄面的冲击,有效地抑制表面波动,减小钢水的冲击深度;磁场和流场的相互作用程度直接影响电磁制动效果,磁场位置的升高或降低会出现双涡现象.
The three-dimensional flow mathematical model describing the mold electromagnetic braking process was applied and numerically simulated by using the developed program MOLD-EMBR 3D1.0. The results show that electromagnetic brake can obviously slow down the flow rate of the mainstream steel and relieve the impact on the narrow face of the slab, effectively suppress the surface fluctuation and reduce the impact depth of the molten steel. The interaction between the magnetic field and the flow field directly affects the electromagnetic brake Effect, the magnetic field position increases or decreases will appear double vortex phenomenon.