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CHT'97 - Advances in Computational Heat Transfer. Proceedings of the International Symposium
May, 26-30, 1997 , Çesme, Turkey

DOI: 10.1615/ICHMT.1997.IntSymLiqTwoPhaseFlowTranspPhenCHT


ISBN Print: 978-1-56700-115-0

ISSN: 2578-5486

NUMERICAL DETERMINATION OF THE CORRELATIONS QUALIFYING THE MASS AND HEAT TRANSFER AROUND A SPHERE SATURATED WITH A PURE LIQUID IN NATURAL CONVECTION

page 8
DOI: 10.1615/ICHMT.1997.IntSymLiqTwoPhaseFlowTranspPhenCHT.420
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摘要

In this study, we are interested in heat and mass transfers around a sphere in a gas environment. The sphere is porous and saturated with a single constituent liquid. The study is envisaged in natural convection by taking into account the variability of the physical properties according to the temperature and the pressure. To describe the liquid-vapor equilibrium and to determine the molar fraction at the surface of the sphere in a high pressure gas we use the fugacity and the Redlich-Kwong equation. In addition, mass and heat transfer equations are linked, due to the fact of taking into account the enthalpic diffusion in the heat equation. The resolution of transfer equations (impulsion, heat and mass) around the sphere allow us to determine Nusselt and Sherwood local numbers. These numbers values are used to define, by integration, their average magnitude as a function of dimensionless numbers qualifying transfers.

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