Two-Dimensional Numerical Simulation of Thermocapillary Convection in Annular Two-Layer System
Two-Dimensional Numerical Simulation of Thermocapillary Convection in Annular Two-Layer System
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DOI：
10.1007/s12217-008-9020-9
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发表时间：
2008-06
影响因子：
1.8
通讯作者：
You-Rong Li;Wen-jie Zhang;Shuang Wang
中科院分区：
文献类型：
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作者：
You-Rong Li;Wen-jie Zhang;Shuang Wang
为了了解环形双层系统中的热毛细对流特性，采用有限体积法对长宽比为4的砷化镓-氧化硼体系在外加热内冷却的差热环形池中进行了二维数值模拟.结果表明，液体包覆能有效地抑制熔体中的热毛细对流。当考虑浮力时，热毛细对流在液体封装中减少，但在熔体中增强。
In order to understand the characteristics of thermocapillary convection in the annular two-layer systems, a set of two-dimensional numerical simulations was carried out using the finite-volume method for the system of gallium arsenide and boron oxide with the aspect ratio 4, in a differentially heated annular pool with the outer heated cylinder and the inner cooled cylinder. The results show that liquid encapsulation can effectively suppress thermocapillary convection in the melt. When the buoyancy is considered, thermocapillary convection is reduced in liquid encapsulation, but enhanced in the melt.