通过调整多侧孔水口侧孔射流方向来实现结晶器内钢流的旋转,并设计了一种易于加工、使用寿命长的多侧孔新型旋流水口.建立了圆坯结晶器内三维流动、传热数学模型,计算分析了直筒形水口和新型旋流水口条件下结晶器内的流场和温度场.结果表明:通过调整多孔水口侧孔射流方向可以实现结晶器内钢流的旋转,新型旋流水口能显著降低钢水的冲击深度,促进夹杂物上浮,使热中心上移,提高弯月面的温度.
参考文献
| [1] | Yokoya S;Westoff R;Asaka Y et al.Numerical study of immersion nozzle outlet flow pattern with swiding flow in continuous casting[J].ISIJ International,1994,34(11):889-895. |
| [2] | Shavkat KHOLMATOV;Shigeo TAKAGl;Lage JONSSON .Development of Flow Field and Temperature Distribution during Changing Divergent Angle of the Nozzle When Using Swirl Flow in a Square Continuous Casting Billet Mould[J].ISIJ International,2007(1):80-87. |
| [3] | S.Yokoya .Swirling Effect in Immersion Nozzle on Flow and Heat Transport in Billet Continuous Casting Mold[J].ISIJ International,1998(8):827-833. |
| [4] | Shinichiro YOKOYA;Shigeo TAKAGI;Motoki KANEKO .Swirling Flow Effect in Off-center Immersion Nozzle on Bulk Flow in Billet Continuous Casting Mold[J].ISIJ International,2001(10):1215-1220. |
| [5] | Yokoya S.;Takagi S. .Development of Swirling Flow Generator in Immersion Nozzle[J].ISIJ International,2000(6):584-588. |
| [6] | Yokoya S;Takagi S;Tsuknguchi Y.通过浸入式水口中的旋流控制连铸结晶器中热量和质量的传输[A].北京:冶金工业出版社,2003:649-652. |
| [7] | 贾洪海,于湛,雷作胜,邓康,陈家昶,华文杰,任忠鸣.旋流水口对小方坯连铸结晶器流场影响的水模拟[J].金属学报,2008(03):375-380. |
| [8] | Launder B E;Spading D B .The numerical calculation of turbulent flows[J].Computer Methods in Applied Mechanics and Engineering,1974,15(03):269-276. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%