以某厂T型中间包为例,建立了中间包内钢液流动、传热数学模型。针对数值模拟中存在的传热边界条件的准确性问题进行探讨,引入了中间包包衬散热计算模型,得出关于中间包包衬结构的热流散失与内壁温度的关系,作为中间包内钢液流动、传热计算的边界条件。利用商用Fluent软件模拟计算,并比较分析了不同边界条件对中间包内钢液流动、传热的影响,结果表明提出的边界条件模型法使计算模拟结果更符合实际。
Based on the structure and operation parameters of a T-type tundish, a 3-D mathematical model has been developed to study the flow field and heat transfer of molten steel in the T-type tundish by the software FLUENT. Aiming at the problems existing in the thermal boundary condition for the numerical simulation of molten steel in the tundish, a mathematic model of tundish liner to study the heat transfer in the T-type tundish liner was intro- duced. The relationship between the heat flux and the temperature of inside-wall in the liner is used as the thermal boundary condition to simulate the flow field and heat transfer of molten steel in the T-type tundish by the software FLUENT. Simulation results show that the thermal boundary condition according to the mathematic model of tundish liner can obtain a result of flow field and heat transfer of the molten steel in the T-type tundish more con- form to the reality than using the commonly thermal boundary conditions.
参考文献
| [1] | 钟良才,王明安,周小宾,刘乐东,腾力宏.5流连铸中间包流场温场数学模拟[J].过程工程学报,2011(01):26-30. |
| [2] | 芦广超,陈伟,闫小林.T型中间包温度场数值模拟[J].河北理工大学学报（自然科学版）,2011(03):38-41. |
| [3] | 朱苗勇 .连铸中间包内钢液流动与传热耦合过程的计算机模拟[J].金属学报,1997,33(09):933. |
| [4] | 胡锐,陈登福,靳星.小方坯连铸中间包流场温度场的数值模拟研究[J].甘肃冶金,2009(02):1-4. |
| [5] | Chakraborty S;Sahai Y .Effect of Holding Time and Surface Cover in Ladles on Liquid Steel Flow in Continuous Casting Tundishes[J].Metallurgical Transactions B-Process Metal- lurgy,1992,23(02):153. |
| [6] | Chakraborty S;Sahai Y .Mathematical-Modeling of Trans port Phenomena in Continuous Casting Tundishes .1.Tran sient Effects During Ladle Transfer Operations[J].Ironmak-ing and Steelmaking,1992,19(06):479. |
| [7] | Chakraborty S;Sahai Y .Mathematical Modeling of Trans- port Phenomena in Continuous Casting Tundishes-Transient Effects Owing to Varying Ladle Stream Temperature[J].Ironmaking and Steelmaking,1992,19(06):488. |
| [8] | D.Y. Sheng;Lage Jonsson .Investigation of transient fluid flow and heat transfer in a continuous casting tundish by numerical analysis verified with nonisothermal water model experiments[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1999(5):979-985. |
| [9] | Morales R D;Barreto J D;Lopez Ramirez S et al.Molt Flow Control in a Multistrand Tundish Using a Turbulence Inhibitor[J].Metallurgical and Materials Transactions B- Process Metallurgy and Materials Processing Science,2000,31(06):1505. |
| [10] | S. LOPEZ-RAMIREZ;J. de J. BARRETO;J. PALAFOX-RAMOS .Modeling Study of the Influence of Turbulence Inhibitors on the Molten Steel Flow, Tracer Dispersion, and Inclusion Trajectories in Tundishes[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2001(4):615-627. |
| [11] | Patankar S V;Spalding D B .Calculation Procedure for Heat,Mass and Momentum-Transfer in 3 Dimensional Parabolic Flows[J].International Journal of Heat and Mass Transfer,1972,15(10):1787. |
| [12] | 高家锐.动量、热量、质量传输原理[M].重庆:重庆大学出版社,1987 |
| [13] | 聂向晖,李晓刚,杨体绍,李明,谭依.连续铸钢用中间包衬里损伤的红外检测分析[J].北京科技大学学报,2004(01):45-48. |
| [14] | 吴晓东;田乃媛;徐安军 等.大型中间包传热分析[J].钢铁,1999,34(z1):507. |
| [15] | 程乃良,彭世恒,肖泽强,王建军.梅钢40 t板坯中间包的工业试验与仿真分析[J].中南工业大学学报(自然科学版),2001(01):36-40. |
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