论文部分内容阅读
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。
In this paper, we use the basic theory of Electromagnetism Fluid Mechanics (MHD) to give a mathematic model of full-width electromagnetic brake in slab mold, and use CFX software to do numerical simulation. The results show that a horizontal magnetic field can effectively change the flow field distribution in the mold and show a piston state in the lower part of the area. Electromagnetic braking facilitates the floating of non-metallic inclusions. The position of the magnetic field affects the stability of the meniscus , And have different effects on the trajectories of non-metallic inclusions coming out of different locations at the exit.