| 突片激励射流冲击冷却的实验研究 |
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| 引用本文： | 余业珍,,张靖周,,武彬彬,牛宝联,李应林.突片激励射流冲击冷却的实验研究[J].南京师范大学学报,2015,0(4). |
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| 作者姓名： | 余业珍 张靖周 武彬彬 牛宝联 李应林 |
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| 作者单位： | （1.南京师范大学能源与机械工程学院，江苏 南京 210042）（2.南京航空航天大学江苏省航空动力系统重点实验室，江苏 南京 210016）（3.南京航空航天大学能源与动力学院，江苏 南京 210016） |
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| 摘 要： | 对突片激励射流冲击冷却特性进行实验研究，分析突片形成的流向涡对冲击换热特性的影响，总结了双排射流孔的传热规律. 实验结果表明，在双排突片射流冲击冷却中，突片具有改善冲击换热特性的作用，射流孔的排列方式以及两排孔之间流向孔间距的变化对冲击靶面的温度分布具有较大的影响，叉排孔的有效冷却范围更大，冷却效果更好.
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| 关 键 词： | 冲击冷却 突片 实验研究 双排孔 温度分布 |
Experimental Investigation on Jet Impingementwith Vortex-Generating Tabs |
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| Yu Yezhen,,Zhang Jingzhou,,Wu Binbin,Niu Baolian,Li Yinglin.Experimental Investigation on Jet Impingementwith Vortex-Generating Tabs[J].Journal of Nanjing Nor Univ: Eng and Technol,2015,0(4). |
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| Authors: | Yu Yezhen Zhang Jingzhou Wu Binbin Niu Baolian Li Yinglin |
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| Affiliation: | （1.School of Energy and Mechanical Engineering，Nanjing Normal University，Nanjing 210042，China）（2.Key Laboratory of Aerospace Power System of Jiangsu Province，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China）（3.College of Energy and Power Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China） |
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| Abstract: | The impingement cooling characteristics of a circular jet with tabs are investigated experimentally. It is analyzed that stream wise vortices formed by tabs affect the impingement cooling characteristics. The heat transfer laws of double-rows jet orifices are summarized. The results show that tabs can improve the impinging heat transfer properties for the impingement cooling with double-rows tabbed jet flows. The arrangement of jet orifices and the change of the stream wise space between the orifices have an important influence on the target temperature distribution. The staggered orifices have the larger valid cooling cope and the better cooling effect. |
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| Keywords: | impingement cooling tabs experimental investigation double-rows jet orifices temperature distribution |
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