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강제대류 층류 막응축에서 복합열전달

Conjugate Heat Transfer of Laminar Film Condensation Along a Horizontal Plate

  • 이억수 (부산대학교 기계공학부)
  • 발행 : 2006.03.01

초록

This paper proposes appropriate conjugate parameters and dimensionless temperatures to analysis the conjugate problem of heat conduction in solid wall coupled with laminar film condensation flow adjacent to horizontal flat plate. An efficient methods for some fluids are proposed for its solution. The momentum and energy balance equations are reduced to a nonlinear system of ordinary differential equations with four parameters: the Prandtl number, Pr, Modified Jacob number, $Ja^*/Pr$, defined by an overall temperature difference, a property ratio $\sqrt{\rho_l{\mu}_l/{\rho_v{\mu}_v}$ and the conjugate parameter $\zeta$. The obtained similarity solution reveals the effect of the conjugate parameter, and the results are compared with the simplified solution. The variations of the heat transfer rates as well as the interface temperature and frictions along the plate are shown explicitly.

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참고문헌

  1. Luikov, A. V., Aleksashenko, V. A. and Aleksashenko, A. A., 1971, 'Analytical Methods of Solution of Conjugated Problems in Convective Heat Transfer,' Int. J. Heat Mass Transfer, Vol. 14, pp. 1047-1056 https://doi.org/10.1016/0017-9310(71)90203-1
  2. Memory, S. B., Lee, W. C. and Rose, J. W., 1993, 'Forced Convection Film Condensation on a Horizontal Tube-Effect of Surface Temperature Variation,' Vol. 36, No. 6, pp. 1671-1676 https://doi.org/10.1016/S0017-9310(05)80076-6
  3. Honda, H. and Fujii, T., 1984, 'Condensation of Flowing Vapor on a Horizontal Tube-Numerical Analysis as a Conjugate Heat Transfer Problem,' ASME J. Heat Transfer, Vol. 106, pp. 841-848 https://doi.org/10.1115/1.3246761
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  5. Lee, S. H. and Lee, E. S., 2001, 'Similarity and Approximate Solutions of Laminar Film Condensation on a Flat Plate,' KSME Int. J., Vol. 15, No. 9, pp. 1339-1345 https://doi.org/10.1007/BF03185675
  6. Luikov, A V., 1974, 'Conjugate Convective Heat Transfer Problems,' Int. J. Heat Mass Transfer, Vol. 17, pp. 257-265 https://doi.org/10.1016/0017-9310(74)90087-8
  7. Chair, M. I. and Chang, C. L., 1997, 'Effect of Wall Conduction on Natural Convection Flow of Micro-polar Fluids Along a Flat Plate,' Int. J. Heat Mass Transfer, Vol. 40, No. 15, pp. 3641-3652 https://doi.org/10.1016/S0017-9310(97)00006-9

피인용 문헌

  1. Development and Validation of a Measurement Technique for Interfacial Velocity in Liquid-gas Separated Flow Using IR-PTV vol.39, pp.7, 2015, https://doi.org/10.3795/KSME-B.2015.39.7.549