摘要
在专门设计的二维模型上对非等温流现象的形成条件进行了实验研究,定义了衡量非等温流动出现的准数,并给出了临界值,以用来判断中间包内温度差对钢水流动的影响程度．对中间包非等温流动的形成过程进行了数值模拟,并在40t 中间包上做了生产现场的直接测量．结果表明,在正常生产条件下,中间包内流体流动是一个典型的非等温过程．
The formation of non-isothermal flow in a tundish was investigated in a special designed 2D water modelling system. The critical condition of the formation of non-isothermal flow was proposed to be a number Zb evaluating the sensitivity of tundish flow to temperature difference. CFD simulation of the tracing pattern in a water model described in the initial formation condition of non-isothermal flow. A direct measurement of temperature stratification in a 40 t tundish confirmed the existence of the non-isothermal flow.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2006年第2期113-118,共6页
Journal of University of Science and Technology Beijing
基金
国家"九五"攻关项目
关键词
中间包
非等温现象
钢液流动
自然对流
数值模拟
tundish
non-isothermal
flow of steel
natural convection
numerical simulation
