| 轴向磁场对分离结晶熔体中热毛细对流的影响 |
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| 引用本文： | 彭岚,孟海泳,李友荣,张伟.轴向磁场对分离结晶熔体中热毛细对流的影响[J].工程热物理学报,2011(5):737-740. |
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| 作者姓名： | 彭岚 孟海泳 李友荣 张伟 |
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| 作者单位： | 重庆大学低品位能源利用技术及系统教育部重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(No.51076173) |
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| 摘 要： | 为了了解磁场对分离结晶过程中熔体内热毛细对流的影响,利用有限差分法进行了数值模拟.假定熔体为不可压缩流体,熔体深径比为1,自由表面无因次宽度为0.1,研究了哈特曼数分别为0、25,50和75时的碲锌镉晶体生长过程.结果表明:轴向磁场能够抑制熔体内部的流动,并随磁场强度的增加,抑制作用增强.
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| 关 键 词： | 分离结晶 轴向磁场 碲锌镉 热毛细对流 微重力 |
Effects of an Axial Magnetic Field on Thermocapillary Convection in Detached Solidification |
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| PENG Lan MENG Hai-Yong LI You-Rong ZHANG Wei.Effects of an Axial Magnetic Field on Thermocapillary Convection in Detached Solidification[J].Journal of Engineering Thermophysics,2011(5):737-740. |
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| Authors: | PENG Lan MENG Hai-Yong LI You-Rong ZHANG Wei |
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| Institution: | PENG Lan MENG Hai-Yong LI You-Rong ZHANG Wei (Key Laboratory of Low-grade Energy Utilization Technologies and Systems of Ministry of Education,Chongqing University,Chongqing 400044,China) |
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| Abstract: | In order to investigate the effects of the magnetic field on the thermocapillary convection in the detached solidification,the finite-difference method was used to carry on numerical simulation. It was assumed that the melt was incompressible,the values of the aspect ratio(height/radius) of the crucible equal to 1,and the nondimensional width of the free interface equal to 0.1.We researched the growth of CdZnTe,when the Hartmann number is equal to 0,25,50 and 75,respectively.The results indicate that,the ax... |
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| Keywords: | detached solidification axial magnetic field CdZnTe thermocapillary convection microgravity |
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