摘要
通过几何相似比1:3.5的水模型实验对40 t八流中间包不同控流装置下的流场进行了模拟研究。结果表明,原中间包平均滞止时间短,一侧4个水口的停留时间相差较大;优化的双导流孔挡墙可使中间包死区体积分数比原型减少19.15%,优化的C12W1矩形挡墙可使中间包死区体积分数比原型减少31.49%;中间包一侧4个水口的滞止时间差值减少;设置湍流抑制器虽然增加钢液的滞止时间和峰值时间,但不能有效地降低死区体积分数。
The flow field of in a 40 t tundish with different flow control devices for eight-strand continuous casting has been simulated by test of water model with 1：3.5 geometric similarity scale.Results show that the average stagnation time of original tundish is short and the difference of residence time between four outlets at one side of tundish is large;as compared original tundish the dead area volume fraction of tundish with optimum weir and double diversion holes and with optimum C 12W1 rectangle weir respectively decreases by 19.15%and 31.49%,and the difference value of stagnation time between four outlets at one side also decreases;the installed turbulence modifier can increase stagnation time and peak time of molten steel,but not effectively reduce the dead area volume fraction.
出处
《特殊钢》
北大核心
2012年第3期18-21,共4页
Special Steel
基金
国家自然科学基金(No.51074021)
教育部博士点基金(No.20100006120008)
博士后基金项目(20100480204)资助
关键词
八流中间包
水模型
挡墙
湍流控制器
优化设计
Tundish of Eight-Strand Casting
Water Model
Weir
Turbulence Control Device
Optimum Design
