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首页> 外文期刊>Journal of Heat Transfer >Heat Transfer and Flow Resistance Characteristics of Louver Fin Geometry for Automobile Applications
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Heat Transfer and Flow Resistance Characteristics of Louver Fin Geometry for Automobile Applications

机译：汽车应用百叶窗散热片的传热和流阻特性

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The present work was conducted to investigate the air-side pressure drop and heat transfer performance of the louver fin-tube heat exchanger for automobile applications Fourteen kinds of louver fin geometries with different louver pitches and angles were tested in the present work. The f and j factors for plane and louver fin configurations were compared experimentally and numerically. The heat transfer and pressure drop characteristics of the plane fin showed the combined mode of the developing flow on a flat plate and the fully developed flow in the rectangular channel. The heat transfer coefficient of the louver fin was about twice as high as that of the plane fin. Empirical correlations proposed by previous researchers were compared with the present experimental data Correlations of j and f factors were proposed for the present experimental data The j and f factors were simply expressed as functions of the average louver pitch, fin pitch louver angle, and Reynolds number based on the louver pitch. The present correlations of the heat transfer and pressure drop agreed well with the experimental data
机译：进行本工作以研究汽车用百叶窗翅片管热交换器的空气侧压降和传热性能。在本工作中，测试了十四种百叶窗翅片的几何形状，它们具有不同的百叶窗间距和角度。实验和数值比较了平面和百叶窗鳍构型的f和j因子。平面翅片的传热和压降特性显示了平板上显影流与矩形通道中完全显影流的组合模式。百叶窗翅片的传热系数约为平面翅片的传热系数的两倍。将以前的研究人员提出的经验相关性与本实验数据进行了比较将本实验数据的j和f因子进行相关分析将j和f因子简单表示为平均百叶板节距，鳍节距百叶板角度和雷诺数的函数基于百叶窗的音高传热和压降之间的关系与实验数据吻合得很好

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