| 复合翅片传热与流动特性的数值模拟 |
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| 引用本文： | 苟秋平,吴学红,吕彦力,张文慧,朱兴旺. 复合翅片传热与流动特性的数值模拟[J]. 热科学与技术, 2011, 0(4): 317-323 |
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| 作者姓名： | 苟秋平 吴学红 吕彦力 张文慧 朱兴旺 |
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| 作者单位： | 郑州轻工业学院机电工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(21076200); 河南省省院合作项目(092106000013); 河南省科技攻关项目(102102210138); 郑州市创新团队项目(10CXTD151); 郑州市科技攻关项目(10PTGG381-1) |
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| 摘 要： | 结合纵向涡发生器和开缝的优点,提出一种复合强化传热翅片,并对该种翅片的传热与流动特性进行数值计算.由于翅片结构比较复杂,在三角形小翼及X形开缝区域应用阶梯逼近进行网格划分.复合翅片的强化作用在于两方面:一是在三角形小翼和X形开缝后的流场均产生了纵向涡,对流体产生较强的扰动；二是带状开缝的间断表面抑制了边界层的增长,平均...
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| 关 键 词： | 复合翅片 场协同 (烯:)耗散 纵向涡 强化传热 |
Numerical simulation of heat transfer and flow characteristics of composite fin |
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| Abstract: | The composite fin was proposed for the enhance heat transfer,based on the advantages of longitudinal vortex generator and slit.The performance of heat transfer and fluid flow was investigated by numerical simulation.Stepwise approximation method was applied on the mesh generation for the irregular domains of delta winglets and slit fins due to complex structure of fin.The computational results show that some recalculating eddies develops behind the X-shaped slit and triangle winglet,which lead to the distur... |
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| Keywords: | composite fin field synergy principle entransy dissipation longitudinal vortex enhanced heat transfer |
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