| 异形坯连铸充型凝固过程数值模拟 |
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| 引用本文： | 晋艳娟,崔小朝,张柱. 异形坯连铸充型凝固过程数值模拟[J]. 特殊钢, 2010, 31(4): 11-13 |
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| 作者姓名： | 晋艳娟 崔小朝 张柱 |
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| 作者单位： | 太原科技大学应用科学学院，太原030024 |
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| 基金项目： | 山西省青年基金项目资助 |
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| 摘 要： | 利用CFD商用软件Flow-3d,对单双水口Q215钢750 mm×450 mm×120 mm异形坯连铸结晶器内钢水充型凝固过程进行数值模拟,得到了速度场、温度场的分布图和充填过程自由表面的位置和形状图。分析了单双水口模型对速度场及凝固的影响。结果表明,双水口模型可以减轻结晶器上部回流的强度,减小冲击深度,提高传热效率,加快结晶器内钢液的凝固速度,有助于提高铸坯的质量和提高拉速。
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| 关 键 词： | 异形坯连铸 充型 凝固 数值模拟 |
| 收稿时间： | 2010-03-09 |
Numerical Simulation of Mold Filling and Solidification Process for Shaped Concasting Slab |
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| Jin Yanjuan,Cui Xiaochao,Zhang Zhu. Numerical Simulation of Mold Filling and Solidification Process for Shaped Concasting Slab[J]. Special Steel, 2010, 31(4): 11-13 |
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| Authors: | Jin Yanjuan Cui Xiaochao Zhang Zhu |
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| Affiliation: | School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024 |
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| Abstract: | Numerical simulation of mold filling and solidification process of liquid for Q215 steel 750 mm x450 mm x 120 mm shaped slab concasting mold with single submerged nozzle and double submerged nozzles has been carried out by u- sing CFD commercial software Flow-3 d to get the distribution diagrams of velocity field and temperature field and the location and shape diagrams of free-surface during mold filling process. The effect of single and double submerged nozzle model on velocity field and solidification is analyzed. Results show that double submerged nozzle model is available to lighten the intensity of circumfluence at upper part of mold, decrease impact depth, increase heat transfer efficiency and quicken solidification speed of liquid steel in mold, that is favorable to improve quality of slab and increase casting speed. |
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