한국유체기계학회 논문집 (The KSFM Journal of Fluid Machinery)

한국유체기계학회 (Korean Society for Fluid machinery)
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딤플이 설치된 회전 유로에서의 열전달 계수 분포 측정 연구

Measurement of the Detailed Heat Transfer Coefficient in the Rotating Dimpled Rectangular Channel

  • 박승덕 (한국항공대학교 항공우주 및 기계공학부 대학원) ;
  • 이기선 (한국항공대학교 항공우주 및 기계공학부 대학원) ;
  • 전창수 (한국항공대학교 항공우주 및 기계공학부) ;
  • 곽재수 (한국항공대학교 항공우주 및 기계공학부) ;
  • 전용민 (한국항공우주연구원 KHP 개발실)
  • 발행 : 2009.02.01
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초록

The detailed heat transfer coefficient on a rotating dimpled channel were measured using the transient liquid crystal technique. The channel height to dimple diameter was 2, dimple center distance to dimple diameter was 1.5 and channel aspect ratio was 4. Tested Reynolds number based on the channel hydraulic diameter was varied from 15000 to 35000 and corresponding rotation number was ranged from 0.026 to 0.057. Results showed that the Coriolis force by rotation enhanced the heat transfer coefficient on the trailing surface. As the Reynolds number increased, i.e. rotation number decreased, the heat transfer coefficient increased and the thermal performance factor decreased.

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참고문헌

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피인용 문헌

  1. vol.13, pp.1, 2010, https://doi.org/10.5293/KFMA.2010.13.1.063