论文部分内容阅读
为研究水口部分堵塞和磁场对板坯连铸结晶器流场以及夹杂物去除的影响,引入滑板控流模拟水口部分堵塞现象,通过商业软件FLUENT进行结晶器流场的三维数值仿真计算。计算结果显示:未施加磁场时,滑板开启80%时,非金属夹杂物颗粒的去除率最高;加入磁场后,结晶器内钢液流态和夹杂物去除率发生改变;在自由液面下350mm处施加一静磁场,能提高细小非金属夹杂物颗粒的去除率,此时滑板开启率的变化和磁场大小的改变对夹杂物颗粒去除的影响较小。
In order to study the blockage of nozzle and the effect of magnetic field on the flow field and inclusion removal in slab continuous casting mold, a flow control flow was used to simulate the partial blockage of nozzle. Three-dimensional numerical simulation of mold flow field was carried out by commercial software FLUENT. The calculation results show that when the magnetic field is not applied, the removal rate of non-metallic inclusions is the highest when 80% of the sliding plate is opened. When the magnetic field is added, the fluid flow and inclusion removal rate in the mold change. At the same time, applying a static magnetic field can improve the removal rate of small non-metallic inclusions. At this time, the change of the opening rate of skateboard and the change of magnetic field have little effect on the removal of inclusions particles.