建立了热流力耦合的三维非稳态有限元模型,对结晶器内钢水凝固过程中的传热、流动和变形情况进行了模拟.以尺寸为1.2mm×0.2m的Q235B板坯为研究对象,利用Procast软件的二次开发,求解出了结晶器区域内的温度场、流场和应变分布.计算结果表明,铸坯收缩量在不同方向上存在不同的分布状态.考虑气隙产生对传热的影响时,结晶器出口铸坯表面平均温度由1120.5℃增加到1289.7℃,坯壳厚度由16.1mm减少到14.2mm.
参考文献
[1] | TOMAS B G .Application of mathematical models to the continuous slab casting mold[J].ISS Trans,1990,11:143-156. |
[2] | WIMMER F;THONE H;LINDORFER B.Thermomecha-nically coupled analysis of the steel solidification process as a basis for the development of a high speed biller casting mold[A].北京,1998:366. |
[3] | 张炯明,张立,杨会涛,王新华.板坯结晶器钢水凝固的数值模拟[J].北京科技大学学报,2004(02):130-134. |
[4] | 张家泉,崔立新,陈志平,陈素琼.板坯连铸结晶器内温度/应力场耦合模型[J].北京科技大学学报,2004(04):373-376. |
[5] | 陈永,罗歆,沈厚发.连铸结晶器内大方坯的热力耦合分析[J].钢铁,2008(03):33-37. |
[6] | 严波;文光华;张培源 .板坯连铸结晶器内铸坯凝固及变形的热力耦合有限元分析[J].应用力学学报,1998,15(04):43-48. |
[7] | 康丽,王洋,王恩刚,赫冀成.结晶器内连铸坯的热和应力状态数值模拟[J].中国冶金,2007(05):28-32. |
[8] | ZHANG L;SHEN H F;RONG Y M .Numerical simulation on solidification and thermal stress of continuous casting billet in mold based on meshless method[J].Materials Science and Engineering,2007,466:71-78. |
[9] | SUDHARSAN N M;MURALI K;KUMAR K .Finite element analysis of non-linear fluid structure interaction in hydrodynamics using mixed Lagrangian-Eulerian method[J].International Journal of Computational Engineering Science,2004,5:425-444. |
[10] | 仇圣桃,刘和平,干勇.基于连续模型的板坯连铸凝固过程的数值模拟[J].钢铁研究学报,2003(06):16-20. |
[11] | Man Y. Ha;Hyun G. Lee;Seung H. Seong .Numerical simulation of three-dimensional flow, heat transfer, and solidification of steel in continuous casting mold with electromagnetic brake[J].Journal of Materials Processing Technology,2003(3):322-339. |
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