摘要
对电磁场的准确计算是合理确定电磁搅拌工艺参数、充分发挥电磁搅拌效能的前提.基于Maxwell方程组,用解析近似法求得了圆电流和单匝螺线管激发的电磁场,并由此计算了合金熔体所受的Lorentz力.结果表明,合金熔体的表面层(厚度约为趋肤深度δ)同时受到约束力、切向力以及悬浮力的共同作用,最终引起合金熔体的轴向搅动和平面内的旋转流动.相关的实验结果也与本结论符合.
Accurate calculation ofintermediate frequency the electromagnetic field is the precondition to confirm the parameters of electromagnetic stirring technique and to exert the efficiency of the electromagnetic stirrings adequately.Based on Maxwell equations,the distribution characteristics of electromagnetic field stimulated by circular current and single-turn coil soleniod was obtained by using analytic approximation method,then Lorentz force was calculated.The results show that the surface layer for alloy me...
出处
《内蒙古科技大学学报》
CAS
2007年第3期215-218,共4页
Journal of Inner Mongolia University of Science and Technology
基金
内蒙古科技大学科研基金资助项目(KJ200618)
