| 水平磁场对双层流体热毛细对流的影响 |
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| 引用本文： | 周小明,黄护林. 水平磁场对双层流体热毛细对流的影响[J]. 工程热物理学报, 2008, 29(11) |
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| 作者姓名： | 周小明 黄护林 |
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| 作者单位： | 南京航空航天大学高新技术研究院,江苏,南京,210016 |
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| 基金项目： | 国家自然科学基金 |
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| 摘 要： | 三维数值研究了零重力时水平温度梯度作用下,B2O3封闭液与InP熔液组成的双层流体系统在水平磁场作用下的热毛细对流.结果显示,当磁场强度较小时,上层流体中对流涡的结构变化其微,而下层流体中的逆对流涡得到了抑制;随着磁场的增强,温度场分布逐渐趋于均匀,涡量强度逐渐减小,表明热毛细对流强度逐步地得到削弱.当磁场增强列Bx=0.4 T时,上层流体中的对流涡较均匀地充满上层流体区,而下层流体中对流涡紧贴着交界面.
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| 关 键 词： | 磁场 热毛细对流 双层流体系统 对流涡 水平温度梯度 |
EFFECTS OF HORIZONTAL MAGNETIC FIELDS ON THERMOCAPILLARY CONVECTION IN TWO-LAYER FLUIDS SYSTEM |
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| ZHOU Xiao-Ming,HUANG Hu-Lin. EFFECTS OF HORIZONTAL MAGNETIC FIELDS ON THERMOCAPILLARY CONVECTION IN TWO-LAYER FLUIDS SYSTEM[J]. Journal of Engineering Thermophysics, 2008, 29(11) |
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| Authors: | ZHOU Xiao-Ming HUANG Hu-Lin |
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| Affiliation: | ZHOU Xiao-Ming HUANG Hu-Lin Academy of Frontier Science,Nanjing University of Aeronautics , Astronautics,Nanjing 210016,China |
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| Abstract: | Under a horizontal temperature gradient along the liquid-liquid interface, the effects of horizontal magnetic fields on thermocapillary convection in the two-layers immiscible fluid system absent gravity were simulated numerically, where the upper layer fluid was encapsulant boron oxide, the underlayer fluid was molten indium-phosphide in this paper. The results showed that, the form of the convective cell in the encapsulant almost does not change but in the melt the counter rotating eddy is damped when mag... |
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| Keywords: | magnetic fields thermocapiUary convection two-layer fluids system convective cell horizontal temperature gradient |
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