多流中间包内流体流动模式的分析方法  

Analytical Method for Flow Pattern in Multi-strand Tundish

作　　者：祝明妹[1] 文光华[1] 唐萍[1] 陈远清[1] 

机构地区：[1]重庆大学材料科学与工程学院冶金系,重庆400044

出　　处：《过程工程学报》2008年第S1期41-44,共4页The Chinese Journal of Process Engineering

基　　金：重庆市自然科学基金(编号:2006BB4202)

摘　　要：提出了多流中间包内流体流动的联合RTD曲线分析方法,并从整体上对多流中间包平均停留时间作出新的解释.以某钢厂多流中间包为模拟对象,进行了水力学模拟实验,采用联合RTD曲线分析方法对多流中间包内流体流动模式进行分析,并与常用的方法进行了比较.实验结果表明.不考虑死区的缓慢流动将会使死区的计算结果产生较大偏差.运用联合RTD曲线分析计算多流中间包内流体流动模式,能够更真实地反映中间包内实际流动状况.The concept of combined residence time distribution(RTD)curve for the multi-strand tundish was presented,and applied to the modified combined model,and the analysis method of the combined RTD curve for the fluid in multi-strand tundish was formed.The piston flow,mixed flow and dead zone volume fraction could be calculated by the method.A new explanation for the mean residence time of multi-strand tundish was also clarified.The physical simulation was carried out to study the fluid flow pattern in a six-stor...

关 键 词：多流中间包 联合RTD曲线 平均停留时间 流动模式 死区 

分 类 号：TF777.2[冶金工程—钢铁冶金]