圆坯结晶器内钢液流场的数值模拟  

Numerical Simulation for Fluid Flow in the Round Bloom Continuous Caster

作　　者：乔娜[1] 庞洪亮 王兴华[2] 赵岩[3] 张红伟[1] 雷洪[1] 

机构地区：[1]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110004 [2]东北特钢集团北满特殊钢有限责任公司,黑龙江齐齐哈尔161041 [3]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《工业加热》2015年第3期52-53,56,共3页Industrial Heating

基　　金：辽宁省百千万人才工程培养经费(2013921073);钢铁冶金新技术国家重点实验室开放课题(KF13-10)

摘　　要：电磁搅拌特性直接影响着结晶器内钢液流动行为。基于包含电磁力的Navier-Stokes方程,采用数值方法研究了电磁搅拌作用下的钢液流场。数值结果表明:电磁搅拌下圆坯结晶器内钢液所受电磁力呈轴对称分布,其值从圆坯边缘到中心逐渐递减,施加电磁搅拌后,钢液的冲击深度减少,结晶器液面流速增加。The characteristics of electromagnetic stirring affect the fluid flow in the continuous casting mold directly. Based on the Navier-Stokes equation involving in the electromagnetic force, numerical method is applied to investigate the flow field of molten steel in the case of electromagnetic stirring. Numerical results show that, the electromagnetic force, which is acting on the molten steel in the round bloom mold with electromagnetic stirring, has axially symmetrical distribution, and the magnitude of electromagnetic force decreases from the edge of the round bloom to the center. And electromagnetic stirring can decrease the impact depth of molten steel and increase the flow velocity at the surface of the mold.

关 键 词：圆坯 连铸结晶器 钢液 磁流体力学 数值模拟 电磁搅拌 

分 类 号：TM924.12[电气工程—电力电子与电力传动]