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首页> 外文期刊>Heat Transfer Engineering >Development of Colburn j Factor and Fanning Friction Factor Correlations for Compact Surfaces of the Triangular Perforated Fins Using CFD
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Development of Colburn j Factor and Fanning Friction Factor Correlations for Compact Surfaces of the Triangular Perforated Fins Using CFD

机译：利用CFD开发三角形多孔鳍紧面的Colburn j因子和Fanning摩擦因子的相关性。

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摘要

The necessity of increased heat transfer surface area has resulted in the development of compact heat exchangers, which are widely used in the aerospace and automobile industries. Hence perforations are made on triangular plain fins to study the effects on the heat transfer coefficient. A numerical model has been developed for the perforated fin of a triangular plate fin heat exchanger. Perforated fin performance has been analyzed with the help of computational fluid dynamics (CFD) by changing the various parameters of the fin. The Colburn j factor and the Fanning friction factor are calculated for different Reynolds numbers. The values of the Colburn j factor and the Fanning friction factor are validated for known geometric fins with available data in the literature and extended to triangular perforated fins. The correlations have been developed between Reynolds number, Colburn j factor, and Fanning friction factor by taking into account fin height, fin thickness, and fin spacing. The present numerical analysis is carried out for air media.
机译：增加传热表面积的必要性导致了紧凑型热交换器的发展，该热交换器广泛用于航空航天和汽车工业。因此，在三角形平面翅片上打孔以研究对传热系数的影响。已经开发了用于三角板翅片热交换器的多孔翅片的数值模型。通过更改散热片的各种参数，借助计算流体力学（CFD）分析了多孔散热片的性能。针对不同的雷诺数计算了Colburn j因子和Fanning摩擦因子。 Colburn j因子和Fanning摩擦因子的值已通过文献中的可用数据对已知的几何翅片进行了验证，并扩展到了三角形穿孔翅片。通过考虑翅片高度，翅片厚度和翅片间距，已经在雷诺数，Colburn j因子和范宁摩擦因子之间建立了相关性。目前的数值分析是针对空气介质进行的。

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  • 来源
    《Heat Transfer Engineering》 |2016年第4期|150-161|共12页
  • 作者

    RAMISETTY BALA SUNDAR RAO; GURAPPA RANGANATH; CHENNU RANGANAYAKULU;

  • 作者单位

    Mechanical Engineering Department, Anna University Chennai, Chennai, India;

    Mechanical Engineering Department, Adhiyamaan College of Engineering, Hosur, India;

    Aeronautical Development Agency, PO Box No. 1718, Vimanapura Post, Bangalore 560 017, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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