Journal of Advanced Marine Engineering and Technology

  • 제23권1호
  • /
  • Pages.54-61
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  • 1999
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  • 2234-7925(pISSN)
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  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
권호 표지

일정벽면열유속의 가열조건의 갖는 거친 동심환형관내의 난류열전달

Turbulent Heat Transfer in Rough Concentric Annuli With Heating Condition of Constant Wal Heat Flux

  • 손유식 (경상대학교 기관공학과 해양산업연구소)
  • 발행 : 1999.01.01
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초록

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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참고문헌

  1. VDI- Forschungsheft Laws of Flow in Rough Pipe Nikuradse
  2. Proc. of the Institute of Mechanical Engineers v.145 The Friction and Heat Transmision Coefficients of Rough Pipes Cope, W. G.
  3. Journal of Heat Transfer v.110 Local Heat/Mass Transfer Distributions around Sharp 180 deg Turns in Two-Pass Smooth and Rib-Roughened Chennels Han, J.C.;Chandra, P. R.;Lau, S. C.
  4. Journal of Heat Transfer v.115 Heat Transfer and Friction Factor Measurements in Ducts With Staggered and In-Line Ribs Hong, Y. J.;Hsieh, S. S.
  5. 대한기계학회논문집(B) v.22 no.4 사각덕트내 요철의 각도 변화에 따른 열전달 특성 우성재;김완식;조형희
  6. Journal of Fluids Engineering v.116 Friction Factor for Flow in Rectangular Ducts With One Side Rib-Roughened Youn, B.;Yuen, C.;Mills, A. F.
  7. Journal of Heat Transfer v.117 Heat Transfer and Pressure Drop Characteristics of Spirally Fluted Annuli : Part 1-Hydrodynamics Grimella, S.;Christensen, R. N.
  8. International Communications in Heat and Mass Transfer v.25 no.4 Fully Developed Fluid Flow and Heat Transfer in Rough Annuli Ahn, S. W.;Kim, K. C.
  9. International J. of Heat and Mass Transfer v.6 Heat Transfer in Annular Passage-Hydrodynamically Developed Turbulent Flow With Arbitrarily Prescribed Heat Flux Kays, W. M.;Leung, E. Y.
  10. Proc. of KSME/JSME Thermal Engineering Conf. v.1 Effect of Axial Velocity of The Core on Fully Developed Laminar Heat Transfer in Eccentric Annuli With The Boundary Conditions of Constant Wall Temperature Shigechi, T.;Momoki, S.;Higashiiue, Lee Y.
  11. Journal of The Korean Society of Marine Engineers v.18 no.1 Fully Developed Turbulent Flow and Heat Transfer in Concentric Annuli With Square-Ribbed Roughness Ahn, S. W.;Oh, S. K.