Numerical modeling of influence of thermal flow coupling on flow characteristics of molten steel  

作　　者：Fan Junfei Ren Sanbing Chen Yaxian Zhao Shunli Huang Zongze Zhu Miaoyong 

机构地区：[1]Advanced Technology Div. , Baosteel Research Institute, Baoshan Iron ＆ Steel Co. , Ltd. , Shanghai 201900, China [2]Northeastern University, Shenyang 110006, China

出　　处：《Baosteel Technical Research》2008年第1期51-55,共5页宝钢技术研究（英文版）

摘　　要：Using the equation of continuity and the double equation of Navier-Stokes and k-ε, numerical modeling on a single outlet continuous casting tundish has been carried out during the process of non-thermal flow coupling. The flow field distribution inside the tundish was calculated and the viscosity response time was calculated with the mass transfer equation based on the flow field distribution. The flow characteristics of the molten steel inside the tundish were analyzed, with the results of the numerical modeling compared to the hydraulic modeling. The results showed that the Resident Time Distribution （RTD） curves in the latter anatomosed comparatively better. This certified the validity established by the mathematical model. Numerical modeling was carried out on both large and small tundishes during the processes of thermal flow coupling and also thermal non-flow coupling. The results showed that in regards to large tundishes with relatively simple flow processes, using numerical modeling for thermal flow coupling is necessary.Using the equation of continuity and the double equation of Navier-Stokes and k-ε, numerical modeling on a single outlet continuous casting tundish has been carried out during the process of non-thermal flow coupling. The flow field distribution inside the tundish was calculated and the viscosity response time was calculated with the mass transfer equation based on the flow field distribution. The flow characteristics of the molten steel inside the tundish were analyzed, with the results of the numerical modeling compared to the hydraulic modeling. The results showed that the Resident Time Distribution （RTD） curves in the latter anatomosed comparatively better. This certified the validity established by the mathematical model. Numerical modeling was carried out on both large and small tundishes during the processes of thermal flow coupling and also thermal non-flow coupling. The results showed that in regards to large tundishes with relatively simple flow processes, using numerical modeling for thermal flow coupling is necessary.

关 键 词：TUNDISH liquid flow thermal flow coupling numerical modeling 

分 类 号：TU312.1[建筑科学—结构工程] P314.2[天文地球—固体地球物理学]