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液桥耦合热--溶质毛细对流自由表面变形的数值研究

, PP. 1278-1281

Keywords: 液桥,热--溶质毛细对流,自由表面,Level,set方法

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Abstract:

采用二维轴对称模型数值研究了液桥耦合热--溶质毛细对流流动特性,自由表面变形使用Levelset方法进行捕获,分析了热Marangoni数与溶质Marangoni数比值Rsigma对流场及自由表面变形的影响。结果显示,当Rsigma-1时,流场由一个逆时针旋转的对流涡组成,自由表面在上部凸起而在下部凹陷,随着Rsigma增大自由表面变形幅度增大。

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