上海大学学报(自然科学版)

• 材料科学与工程 • 上一篇    下一篇

双辊薄带连铸熔池内钢液流动混合的行为

张捷宇1,王波1,周国治1,2,樊俊飞3,任三兵3,赵顺利3
  

  1. 1.上海大学 材料科学与工程学院,上海 200072;2.北京科技大学 理化系,北京 1000
    83;3.宝山钢铁股份有限公司 前沿研究所,上海 201900
  • 收稿日期:2008-05-12 修回日期:1900-01-01 出版日期:2008-10-23 发布日期:2008-10-23
  • 通讯作者: 张捷宇

Numerical Simulation on Fluid Flow and Mixing Behavior in Twin-Roll Strip Cas
ting Pool

ZHANG Jie-yu1,WANG Bo1, K.C. Chou1, 2, FAN Jun-fei3,REN San-bing3,ZHAO Shun-li3   

  1. 1. School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;

    2. Department of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083, China;

    3. Research Institute, Baoshan Iron and Steel Co., Ltd., Shanghai 201900, China

  • Received:2008-05-12 Revised:1900-01-01 Online:2008-10-23 Published:2008-10-23
  • Contact: ZHANG Jie-yu

摘要: 采用数值模拟的方法研究了双辊薄带连铸熔池内钢液的传输行为,分析了采用V形布流系统时熔池内钢液的流动状态和混合特性.计算了熔池自由表面处的湍流动能大小和流体停留时间分布.结果表明,钢液在熔池内均匀分布,有利于薄带坯的均匀凝固.侧封板处钢液更新速度加快,液面波动加强,有利于防止液面结壳.

关键词: 混合, 流动, 数值模拟
,
双辊薄带连铸

Abstract: Transport phenomena of the molten steel in a twin-roll strip casting pool have been studied numerically by solving the momentum equation, k-ε two equations along with the species concentration equation. Flow and mixing characteristics of molten steel in the pool was analyzed using a V-type delivery system. Turbulence kinetic energy and residence time distribution (RTD) of the fluid near the free surface were calculated. It was shown that fluid can be uniformly distributed which was benefit to uniform solidification of the strip. The regeneration rate of fluid and level fluctuation increased near side dams. This is desirable to prevent formation of crust.

Key words: fluid flow, mixing, numerical simulation
,
twin-roll strip casting

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