Publication: Closure of non-equilibrium volume-averaged energy equations in high-conductivity porous media

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Title	Closure of non-equilibrium volume-averaged energy equations in high-conductivity porous media
Authors/Editors*	C.T. DeGroot, A.G. Straatman
Where published*	International Journal of Heat and Mass Transfer
How published*	Journal
Year*	2011
Volume	54
Number
Pages	5039-5048
Publisher	Elsevier
Keywords	Porous media, thermal dispersion, volume-averaging, closure, convective heat transfer
Link	http://dx.doi.org/10.1016/j.ijheatmasstransfer.2011.07.018
Abstract	A formulation for closure of the volume-averaged energy equations under local thermal non-equilibrium conditions has been proposed, providing a general method for obtaining the relevant effective properties for high-conductivity porous materials. The method requires numerical solution of the flow field, as well as closure problems, over a representative volume of porous media. This study considers an array of highly conductive circular cylinders for which all relevant effective properties are obtained. Comparisons are made to results in literature for low Reynolds numbers, while results at higher Reynolds numbers are presented to provide insight into the effects of inertia on the effective properties.