한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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환상핀이 부착된 원봉에서 핀 간격에 따른 대류열전달 해석

EFFECTS OF FIN SPACING ON CONVECTIVE HEAT TRANSFER FOR A CIRCULAR CYLINDER WITH ANNULAR FINS

  • 박태선 (경북대학교 기계공학부) ;
  • 김창하 (경북대학교 기계공학부)
  • Park, Tae Seon (School of Mechanical Engineering, Kyungpook National University) ;
  • Kim, Chang Ha (School of Mechanical Engineering, Kyungpook National University)
  • 투고 : 2014.03.04
  • 심사 : 2014.05.20
  • 발행 : 2014.06.30
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초록

This study is to analyze the local convective heat transfer for a circular cylinder with annular fins. The relation between wall heat transfer and three-dimensional flow is investigated for different distances of annular fins. Depending on the fin spacing, the flow structure is strongly changed by the variation of horseshoe vortices. As the fin spacing increases, the heat transfer rate is maximized at a certain condition. This is clearly obtained as the Reynolds number increases, and it is closely related to the development of horseshoe vortices.

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참고문헌

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