摘要
本文利用电磁流体力学(MHD)的基本理论,给出板坯结晶器内全幅一段电磁制动的数学模型,并利用CFX软件进行了数值模拟。结果表明,全幅一段水平磁场能有效地改变结晶器内的流场分布,并在该区域的下部呈现活塞状态;电磁制动有利于非金属夹杂物的上浮;磁场位置影响着弯月面的稳定,并对从出口处不同位置出来的非金属夹杂物的运动轨迹产生不同的影响。
The mathematical model of LMF(level magnetic field) EMBR (electromagnetic brake)in slab mold is presented here according to the basic theory of magnetohydrodynamics, and then, numerical simulation is done by CFX commercial software. It shows that LMF can modify the distribution of flow feild effectively, make the flow under EMBR region plug-like and get more inclusions floating up. Furthermore, the position of LMF affects the stability of meniscus and the trajectories of inclusions coming from different postions at outlet of immersed nozzle differently.
出处
《连铸》
2000年第4期32-35,共4页
Continuous Casting
