| 温度敏感型磁流体热磁对流特性研究 |
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| 引用本文： | 连文磊,李强,宣益民.温度敏感型磁流体热磁对流特性研究[J].工程热物理学报,2009,30(10). |
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| 作者姓名： | 连文磊 李强 宣益民 |
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| 作者单位： | 南京理工大学动力工程学院,江苏南京,210094 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 建立了描述外磁场作用下温度敏感型磁流体热磁对流特性的数学模型,数值模拟了回路中热磁对流的流动与传热特性.搭建了磁流体热磁对流回路装置,采用粒子示踪测速技术(PIV)测量了磁流体的流速,用热电偶测量了磁流体的温度分布.通过实验值和数值模拟结果,分析了不同磁场大小、不同热负荷,以及不同冷却温度下回路的运行特性.
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| 关 键 词： | 温度敏感型磁流体 热磁对流 数值模拟 |
INVESTIGATION OF THE THERMOMAGNETIC CONVECTION CHARACTERISTICS OF TEMPERATURE-SENSITIVE MAGNETIC FLUID |
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| LIAN Wen-Lei,LI Qiang,XUAN Yi-Min.INVESTIGATION OF THE THERMOMAGNETIC CONVECTION CHARACTERISTICS OF TEMPERATURE-SENSITIVE MAGNETIC FLUID[J].Journal of Engineering Thermophysics,2009,30(10). |
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| Authors: | LIAN Wen-Lei LI Qiang XUAN Yi-Min |
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| Institution: | LIAN Wen-Lei LI Qiang XUAN Yi-Min (School of Power Engineering,Nanjing University of Science & Technology,Nanjing 210094,China) |
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| Abstract: | A mathematical model is established for investigating the characteristics of thermomagnetic convection in the temperature-sensitive magnetic fluid in the presence of an external magnetic field.The flow and heat transport features of the thermomagnetic convection in a loop-shape channel is numerically simulated.A practical system for producing thermomagnetic convection circulation in a loop is fabricated.Experimental measurements are carried out with particle image velocimetry (PIV) for fluid flow and thermo... |
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| Keywords: | PIV temperature-sensitive magnetic fluids thermomagnetic convection PIV numerical sim-ulation |
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