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Natural convection around a radial heat sink

机译:径向散热器周围的自然对流

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摘要

This paper presents the details of an experimental and numerical investigation of natural convection in a radial heat sink, composed of a horizontal circular base and rectangular fins. The general flow pattern is that of a chimney; i.e., cooler air entering from outside is heated as it passes between the fins, and then rises from the inner region of the heat sink. Parametric studies are performed to compare the effects of three geometric parameters (fin length, fin height, and number of fins) and a single operating parameter (heat flux) on the thermal resistance and the average heat transfer coefficient for the heat sink array. In addition, a correlation is proposed to predict the average Nusselt number for a radial heat sink.
机译:本文详细介绍了由水平圆形底座和矩形散热片组成的径向散热器中自然对流的实验和数值研究。一般的流动方式是烟囱。即,从外部进入的较冷空气在翅片之间通过时会受到加热,然后从散热器的内部区域升起。进行参数研究以比较三个几何参数(散热片长度,散热片高度和散热片数量)和单个工作参数(热通量)对散热器阵列的热阻和平均传热系数的影响。另外,提出了相关性以预测径向散热器的平均努塞尔数。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2010年第14期|2935-2938|共4页
  • 作者单位

    School of Mechanical Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Republic of Korea;

    School of Mechanical Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Republic of Korea;

    School of Mechanical Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    natural convection; heat sink; circular base; correlation;

    机译:自然对流;散热器;圆形底座相关性;

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