Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Turbulent Heat Transfer in Rough Concentric Annuli With Heating Condition of Constant Wal Heat Flux

일정벽면열유속의 가열조건의 갖는 거친 동심환형관내의 난류열전달

  • 손유식 (경상대학교 기관공학과 해양산업연구소)
  • Published : 1999.01.01
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Abstract

The fully developed turbulent momentum and heat transfer induced by the roughness elements on the outer wall surfaces in concentric annuli are analytically studied on the basis of a modified turbu-lence model. The resulting momentum and heat transfer are discussed in terms of various parame-ters such as the radius ratio the roughness density Reynolds number and Prandtl number accord-ing to the heating condition. The study shows that certain artificial roughness elements may be used to enhance heat transfer rates with advantage from the overall efficiency point of view.

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References

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