| 双条型磁极作用下结晶器内液态金属流动的数学模型 |
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| 引用本文： | 薄开涛,成国光,吴洁,赵沛. 双条型磁极作用下结晶器内液态金属流动的数学模型[J]. 北京科技大学学报, 1999, 21(4): 334-337 |
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| 作者姓名： | 薄开涛 成国光 吴洁 赵沛 |
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| 作者单位： | 北京科技大学冶金学院,北京,100083 |
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| 摘 要： | 通过涡量－流函数有限元法建立了双条型磁极作用下结晶器内液态金属流动的数学模型，并研究分析了双条型磁极对结晶器内液态金属流动的影响。结果表明：在实验条件下，结晶器内水口出口上下明显形成４个涡流区。
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| 关 键 词： | 电磁制动 有限元 速度场 数学模型 结晶器 |
Mathematical Model of Molten Alloy Flow in Mold with Two Pairs of Magnetic Poles |
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| Bao Kaitao,Cheng Guoguang,Wu Jie,Zhao Pei. Mathematical Model of Molten Alloy Flow in Mold with Two Pairs of Magnetic Poles[J]. Journal of University of Science and Technology Beijing, 1999, 21(4): 334-337 |
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| Authors: | Bao Kaitao Cheng Guoguang Wu Jie Zhao Pei |
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| Abstract: | Based on the vorticity and stream function equations with finite-element method, a mathematical model was developed to describe molten alloy flow in mold with two pairs of poles. The results from above model show there are four vortexes in mold with the present experimental condition. The faster the castingspeed, the stronger the vortex intensity and nearer the divided flow point to the wall of mold, which deteriorates the erosion of the initial shell near narrow wall of mold. The erosion of initial shell will be weakened effectively with imposing of the two pairs of magnetic poles. The stronger the magnetic density and the betterthe braking effect. The two pairs of magnetic poles can make the velocity decrease and the vortex intensityweaken in the upper field of mold and stabilizes the meniscus fluctuation. |
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| Keywords: | electromagnetic brake finite-element method velocity field mathematical model mold |
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