摘要
基于流动场与温度场非耦合假定，建立了连铸结晶器中三维凝固壳厚度分布的计算方法，合理地解决了非耦合计算时流动场与温度场计算域的衔接问题．提出了铸坯表面换热系数的确定方法．用所建立的方法应用于实际板坯连铸过程，进行了其结晶器中三维温度场的数值计算，获得了三维凝固壳厚度分布．对实际板坯漏钢时形成的坯壳厚度进行测定，结果验证了本文的模型正确。
Considering the decoupled model of fluid flow and heat transfer, the numerical method has been developed to simulate the distribution of solidified shell thickness in the mold of continuous slab casting. A connecting method of the computational regions of fluid flow and heat transfer is established, and the effective heat transfer coefficient between the slab and the cooling water in the mold is determined and used as the boundary condition. The method has been applied to the real production to obtain 3 dimensional temperature field and the solidified shell. The computational and handling methods have been verified through the measured distribution of solidified shell thickness from the breakout shell in production.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1997年第10期72-77,共6页
Journal of Xi'an Jiaotong University
基金
国家教委博士点专项基金
关键词
板坯连铸
连续铸造
结晶器
凝固壳
厚度
continuous slab casting solidification process numerical simulation
