| 液态金属熔体中气泡运动特性数值模拟 |
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| 引用本文： | 解茂昭,韩薇,刘红,王德庆.液态金属熔体中气泡运动特性数值模拟[J].大连理工大学学报,2006,46(3):340-344. |
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| 作者姓名： | 解茂昭 韩薇 刘红 王德庆 |
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| 作者单位： | 大连理工大学,能源与动力学院,辽宁,大连,116024;大连交通大学,材料科学与工程学院,辽宁,大连,116028 |
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| 摘 要： | 为了揭示高温液态金属熔体中气泡运动规律及其彩响因素，应用VOF方法对单个气泡在液态金属中的运动特性进行了数值计算，得到了与实验数据相符合的气泡变形及上升速度规律；分析预测了表面张力对气泡变形过程的影响及单个气泡在液态铝熔体中的运动轨迹．结果表明，气泡的变形随着奥托斯数的减小而减小；其运动规律是呈螺旋式上升的，容器半径越小、气泡越小，气泡的摆动幅度越大．
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| 关 键 词： | 气泡运动 VOF方法 金属熔体 数值模拟 |
| 文章编号： | 1000-8608（2006）03-0340-05 |
| 收稿时间： | 2005-01-28 |
| 修稿时间： | 2005-01-282006-02-20 |
Numerical simulation of single bubble motion behavior in molten metal |
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| XIE Mao-zhao,HAN Wei,LIU Hong,WANG De-qing.Numerical simulation of single bubble motion behavior in molten metal[J].Journal of Dalian University of Technology,2006,46(3):340-344. |
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| Authors: | XIE Mao-zhao HAN Wei LIU Hong WANG De-qing |
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| Institution: | 1.School of Energy and Power Eng. , Dalian Univ. of Technoh , Dalian 116024, China; 2. School of Mater. Sci. and Eng., Dalian Jiaotong Univ., Dalian 116028, China |
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| Abstract: | Numerical simulation was performed on the motion behavior of a bubble in a liquid metal by volume-of-fluid(VOF) method to study the flow mechanism of a bubble in the molten metal and factors affecting its behavior.Good agreement between the numerical and experimental results for bubble deformation and motion velocity was obtained.Based on the numerical computations,the effects of the surface tension on the bubble deformation and the single bubble motion behavior in molten aluminum were discussed.The results indicate that the bubble takes less deformation as the Eo is decreased and it rises corkscrewly.The shorter the radius of the container is,the smaller the bubble is,and the more strongly the bubble swings during its rising. |
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| Keywords: | bubble motion volume-of-fluid method metal melt numerical simulation |
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