结晶器中弯月面区域保护渣液流场的数学模拟  

Math Modeling of Mold Flux Flow Field in Meniscus Region

作　　者：漆鑫[1] 唐萍[1] 文光华[1] 苗胜田[1] 

机构地区：[1]重庆大学材料与工程学院,重庆400044

出　　处：《特殊钢》2006年第4期28-30,共3页Special Steel

基　　金：重庆大学研究生创新实践基地创新基金资助项目(200504Y1A0060112)。

摘　　要：用商业软件Fluent对弯月面处保护渣的流场分布和弯月面受力情况进行了数学模拟和分析。对于一个振动周期,在时间t=0时,保护渣的流入量最大,此时保护渣对凝固坯壳产生负压,为使保护渣容易流入,应尽量减小此时的负压,减小保护渣与结晶器之间的摩擦力。模拟结果与南钢方坯连铸实际情况一致。The math modeling of distribution of flux flow field and analysis on pressure of meniscus in mold have been carried out by commercial software Fluent. Tne flow rate of flux was maximum at time t = 0 during a oscillation circle, at that time the minus pressure on solidified shell was produced by flux, therefore it should be to decrease the minus pressure in time as far as possible, in order to decrease frictional force for flux easy flowing in. The modeling results conform to the real condition of billet concasting at Nanjing Steel.

关 键 词：方坯连铸 结晶器 弯月面 保护渣流场 数学模拟 

分 类 号：TF777[冶金工程—钢铁冶金] TQ171.623[化学工程—玻璃工业]