东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (1): 60-63.DOI: 10.12068/j.issn.1005-3026.2014.01.014

• 材料与冶金 • 上一篇    下一篇

薄带连铸新型布流系统的数学物理模拟

任三兵1，朱苗勇1，樊俊飞2   

  1. (1.东北大学 材料与冶金学院， 辽宁 沈阳110819； 2.宝钢股份研究院， 上海201900)
  • 收稿日期:2013-03-28 修回日期:2013-03-28 出版日期:2014-01-15 发布日期:2013-07-09
  • 通讯作者: 任三兵
  • 作者简介:任三兵(1978-)，男，内蒙古巴盟人，东北大学博士研究生；朱苗勇(1965-)，男，浙江诸暨人，东北大学教授，博士生导师.
  • 基金资助:
    中国博士后科学基金资助项目(20080430652).

Mathematical and Physical Simulations of the New Type Feeding System in Strip Casting

REN Sanbing1， ZHU Miaoyong1， FAN Junfei2   

  1. 1. School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China; 2. Baosteel Research Institute， Shanghai 201900， China.
  • Received:2013-03-28 Revised:2013-03-28 Online:2014-01-15 Published:2013-07-09
  • Contact: REN Sanbing
  • About author:-
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摘要： 为了评价薄带连铸新型布流系统的可行性，按照相似理论原理，建立了1∶1水模型试验装置，应用中科院DJ800系统测定了熔池表面波动情况.同时采用CFD软件，应用连续性方程、N-S方程及湍流κ-ε方程模拟计算了该双辊熔池内部的流场分布.在此基础上分析了宝钢新旧两套布流系统在流动、液面波动方面的差别.实验和计算结果表明，新型布流系统对于降低液面波动、改善表面流场形态具有很好的效果，利用CFD技术结合物理模拟试验能够很好地用于评判布流系统的优劣.

关键词: 薄带连铸, 物理模拟, 数值模拟, 原布流系统, 新型布流系统

Abstract: A 1∶1 scale water model tester of twinroll strip casting was set up based on the Froude number and Reynolds number similarity criteria in order to evaluate the new type feeding system. Fluctuation in the surface of the molten pool producing in twinroll strip casting process was studied by hydraulics simulation experiment using DJ800 system. Meanwhile the flow filed distribution inside the molten pool of the twinroll strip casting was studied by solving the continuous equation，NS equation and κε equation using CFD software. Differences of the flow field and surface fluctuation were analyzed on new and old type of the feeding system in Baosteel. The results showed that the new type feeding system had great effect for lowering the wave fluctuation and improving the surface flow filed morphologies of the molten pool. Moreover， the CFD method combined with physical modeling test was suitable for assessing the feeding system used in the strip casting.

Key words: strip casting, physical simulation, numerical simulation, old type feeding system, new type feeding system

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