Heat Transfer Characteristics in Consolidated Porous Media

摘要

A volume averaging theory was exploited to obtain the set of macroscopic energy equations for turbulent flows in low density consolidated porous media. The resulting energy equations along with mathematical modeling reveal the reason why the Reynolds number exponent of the Nusselt number expression for the case of low density consolidated porous media is much greater than that of unconsolidated porous media such as packed beds. The present expressions obtained on the basis of the volume averaging theory are compared against available experimental data and empirical correlations, and are found to be valid for a wide range of the porosity and Reynolds number.