A numerical study of interfacial convective heat transfer coefficient in two-energy equation model for convection in porous media

A numerical experiment has been conducted to determine the interfacial convective heat transfer coefficient in the two-energy equation model for convection in porous media, which is needed when the local thermal equilibrium between the fluid and solid phases breaks down. The similarity of periodical...

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Bibliographic Details
Published in:International journal of heat and mass transfer 2001-03, Vol.44 (6), p.1153-1159
Main Authors: Kuwahara, Fujio, Shirota, Mitsuhiro, Nakayama, Akira
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Heat flow in porous media
Heat transfer
Heat transfer in inhomogeneous media, in porous media, and through interfaces
Physics
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Summary:A numerical experiment has been conducted to determine the interfacial convective heat transfer coefficient in the two-energy equation model for convection in porous media, which is needed when the local thermal equilibrium between the fluid and solid phases breaks down. The similarity of periodically fully developed temperature profiles allows one to perform a numerical experiment using only a single structural unit for determining the fully developed heat transfer coefficient without any empiricism. A universal correlation for the Nusselt number, which agrees well with available experimental data, has been established using the results obtained for a wide range of porosity, Prandtl and Reynolds numbers.
ISSN:0017-9310
1879-2189
DOI:10.1016/S0017-9310(00)00166-6