东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2012, Vol. 33 ›› Issue (3): 397-400+443.DOI: -

• 论著 • 上一篇    下一篇

新型电磁制动漏斗形结晶器内复杂行为的数值模拟

田溪岩;李本文;邹芳;赫冀成;   

  1. 东北大学材料电磁过程研究教育部重点实验室;中国电力工程顾问集团华北电力设计工程有限公司;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    中央高校基本科研业务费专项资金资助项目(N100309003);;

Numerical simulations of complex behaviors for the funnel shape mold with new type EMBR

Tian, Xi-Yan (1); Li, Ben-Wen (1); Zou, Fang (2); He, Ji-Cheng (1)   

  1. (1) Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China; (2) North China Power Engineering Co. Ltd., China Power Engineering Consulting Group, Beijing 100120, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Tian, X.-Y.
  • About author:-
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摘要： 针对漏斗形结晶器的不规则外形开发了新型电磁制动装置,建立了三维物理模型和数学模型.分别借助ANSYS模拟了电磁场,FLUENT模拟了钢液湍流、传热以及凝固.磁场计算结果通过线性插值导入流场,采用等效比热容法处理潜热.钢液拉坯速度为5.5 m/min,水口浸入深度为300 mm.研究了新型电磁制动装置相对结晶器的位置高度和磁动势对钢液流场、温度场及凝壳的影响.结果显示,新型电磁制动装置上表面距离自由液面为250 mm时的制动效果要好于300 mm的情况.对于所选取的流场参数而言,磁动势为8 kA.n即可,磁动势过大会消耗更多的电能,造成不必要的浪费.

关键词: 薄板坯, 新型电磁制动装置, 漏斗形结晶器, 湍流, 凝固

Abstract: A new type electromagnetic brake(EMBR) equipment was specially designed for the funnel shape mold and 3D models were built. Numerical simulations of the magnetic fields produced by the new type EMBR equipment were done with ANSYS, and the magnetic field data results were obtained. Subsequently, the magnetic field was coupled with the turbulent flow, the heat transfer and the solidification simultaneously by FLUENT. In the treatment of the magnetic field data, the linear interpolation by FORTRAN was adopted. The casting speed of 5.5 m/min with the depth of the submerged entry nozzle (SEN) of 300?mm was considered. A series of simulations were carried out to investigate the effects of the height of the magnet and the magnetomotive force on both the flow and the temperature fields. The results showed that due to the EMBR effects, the magnet height of 250 mm is much better than that of 300 mm. As for the parameters of the flow field in present work, the magnetomotive force of 8 kA·n is rational; the higher magnetomotive force may cost more unnecessary electrical energy.

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