Journal of Advanced Marine Engineering and Technology

  • 제22권5호
  • /
  • Pages.588-594
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  • 1998
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  • 2234-7925(pISSN)
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  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
권호 표지

평면제트와 충돌면과의 거리변화에 따른 열전달 특성

Heat Transfer characteristics of distance between impinging surface and a plane jet

  • 김동건 (부산대학교 대학원 기계공학과)
  • 발행 : 1998.09.01
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초록

Heat transfer characteristics of distance between impinging surface and a plane jet were experi-mentally investigated. The local heat transfer coefficients were measured by a thermochromic liq-uid crystal(TLC) The jet Reynolds number studied was varied over the range from 10,000310 to 30,000310 the nozzle-to-plate distance (H/B) from 4 to 10. It was observed that the Nusselt number increases with Reynolds number the occurrence of the secondary peak in the Nusselt number is within the potential core region the potential core of the jet flow can reach the impinging surface so that the wall jet can a transition from laminar to turbulent flow resulting in a sudden increase in the heat transfer rate.

키워드

참고문헌

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