湍流控制器结构对中包流场影响的数模研究  

Numerical Simulation Study on Effect of Structure of Turbulence Inhibitor on Tundish Flow Field

作　　者：张美杰[1] 汪厚植[1] 黄奥[1] 顾华志[1] 朱永军[1] 

机构地区：[1]武汉科技大学湖北省耐火材料与高温陶瓷重点实验室,武汉430081

出　　处：《炼钢》2005年第5期42-45,共4页Steelmaking

基　　金：国家科技攻关计划项目(2005BA325C);省部共建国家重点实验室基金资助项目(J30411)

摘　　要：根据某厂连铸中间包结构和操作工艺参数,选择LAM和Bremhorst修正的低雷诺数κ-ε湍流模型,建立了描述钢液流动的数学模型,用PHOENICS软件进行了模拟计算,讨论了湍流控制器结构对中间包流场的影响,指出湍流控制器的结构对中间包内流场的影响较大,其中环形带顶缘的湍流控制器最有利于中间包内钢液流动特性的改善,环形部分的曲率半径影响钢液的流动情况。On the basis of the structure and operating parameters of the CC tundish at a specific steel-making plant a math model depicting three dimensional turbulent flowing of the hot metal has been established by means of the low-Reynolds-number turbulent model modified by LAM and Bremhorst and numerical simulation calculation made by PHOENICS and the effect of the structure of the turbulent inhibitor on the flow field of the hot metal in the tundish studied. Results show that the structure of the turbulent inhibitor will greatly affect the flow field in the tundish, and particularly the circular turbulent inhibitor with an extended top tip is best suitable to eliminate the turbulence and promote the hot metal flow.

关 键 词：中间包 流场 湍流模型 湍流控制器 

分 类 号：TF777[冶金工程—钢铁冶金]