建立了异形坯连铸过程中结晶器内钢液三维湍流模型,开发了计算程序,并用它研究了马鞍山钢铁公司500 mm×400 mm×120 mm异形坯连铸结晶器内的钢液流动情况,重点分析了水口结构和工艺参数变化时异形坯结晶器内涡心深度的变化规律以及液面湍动能的分布状态.结果表明:水口夹角为120°时,结晶器内流场分布较为合理;水口宜上倾,且倾角不宜超过15°;涡心深度和液面湍动能均随拉速的提高而增大.该模拟结果对现场生产具有重要指导意义.
参考文献
| [1] | Thomas B G;Mika L J;Najjar F M .Simulation of Fluid Flowand Heat Transfer Inside a Continuous Slab Casting Machine[J].Metallurgical and Materials Transactions,1990,21:387-400. |
| [2] | Szekely J .The Mathematical and Physical Modeling of Turbu-lent Recirculating Flow[J].Metallurgical and Materials Transactions,1979,10:34-41. |
| [3] | Flint P J .A Three-Dimensional Finite Difference Model ofHeat Transfer Fluid Flow and Lidification in the ContinuousSlab Caster[J].Steelmaking Conference Proceedings,1990,73:481-490. |
| [4] | Zhe WANG .Influence of Wettability on the Behavior of Argon Bubbles and Fluid flow inside the Nozzle and Mold[J].ISIJ International,1999(2):154-163. |
| [5] | 文光华;何俊范.薄板坯连铸结晶器内钢液凝固传热数值模拟[J].连铸,1995(05):14-20. |
| [6] | 杨建伟,杜艳平,崔小朝,史荣,刘才.异形坯连铸过程流场与温度场耦合三维数值模拟[J].金属学报,2001(07):767-771. |
| [7] | 杨建伟,史荣,杜艳平,崔小朝,刘才.异形坯连铸液固温耦合三维仿真系统[J].系统仿真学报,2001(05):681-682. |
| [8] | 朱苗勇;萧泽强.钢的精炼过程数学物理模拟[M].北京:冶金工业出版社,1998 |
| [9] | Launder B E;Spslding D B .The Numerical Computation ofTurbulent Flow[J].Computer Methods in Applied Mechanics and Engineering,1974,7(03):269-271. |
| [10] | PATANKAR S V.Numerical heat transfer and fluid flow[M].New York: Hemisphere Pub Corp,1980 |
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