Abstract

Purpose – The purpose of this paper is to improve the volume-averaged models for free convection flow in porous media. Design/methodology/approach – A pore scale simulation is conducted against which an independent volume-averaged solver is fine-tuned. Findings – Micro and macro scale results can merge if proper choice of local thermal non-equilibrium and thermal dispersion models are selected. This depends on the range of Ra values investigated. Originality/value – This is the first time a work like this is published in the literature.

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