| X型开缝翅片传热与流动性能的数值模拟 |
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| 引用本文： | 钱力,吴学红,吕彦力.X型开缝翅片传热与流动性能的数值模拟[J].郑州轻工业学院学报(自然科学版),2011(4):45-49. |
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| 作者姓名： | 钱力 吴学红 吕彦力 |
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| 作者单位： | 河南省电力勘测设计院;郑州轻工业学院机电工程学院; |
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| 基金项目： | 国家自然科学基金项目(21076200); 河南省省院合作项目(092106000013); 郑州市科技创新团队项目(10CXTD151); 郑州轻工业学院博士基金项目(2009BSJJ001) |
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| 摘 要： | 对X型开缝翅片的流动与传热性能进行数值模拟,并把计算结果与平片和开缝翅片的计算结果进行比较.结果表明:从3种开缝翅片的JF因子看,X型开缝翅片的最大,说明其性能最优.2种X型开缝翅片管的尾迹区较小,因此该种结构能有效减小尾迹区对换热的影响.
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| 关 键 词： | X型开缝翅片 传热 流动 JF因子 数值模拟 |
Numerical simulation of heat transfer and fluid flow characteristics of X-shaped slit of fin |
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| QIAN Li,WU Xue-hong,LV Yan-li.Numerical simulation of heat transfer and fluid flow characteristics of X-shaped slit of fin[J].Journal of Zhengzhou Institute of Light Industry(Natural Science),2011(4):45-49. |
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| Authors: | QIAN Li WU Xue-hong LV Yan-li |
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| Affiliation: | QIAN Li1,WU Xue-hong2,LV Yan-li2(1.He'nan Electr.Power Survey & Design Inst.,Zhengzhou 450002,China,2.College of Mech.and Electr.Eng.,Zhengzhou Univ.of Light Ind.,China) |
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| Abstract: | Heat transfer and fluid flow characteristics of X-shaped slit fin were investigated by numerical simulation.At the same time,its computational results are compared with that of plain and slit fin.The results showed that JF factor of X-shaped offset fin is maximum and its performance is the best.The X-shaped slit of fin has a low wake region behind the tubes,so its performance of heat transfer and flow is improved in the wake region. |
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| Keywords: | X-shaped slit fin heat transfer fluid flow JF factor numerical simulation |
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