Convective heat transfer coefficient for turbulent flow in a porous medium formed by an array of square rods

Resumo

Interfacial convective heat transfer coefficient is calculated for turbulent flow in a porous medium formed by square rods. Such information is needed for turbulent heat transport modeling in porous media when local thermal non-equilibrium is considered. The model considers fluid flowing through a packed bed with arbitrary bed temperature. This adjustment is obtained by solving the microscopic flow governing equations, using high Reynolds formulation and periodic boundary conditions. The numerical methodology employed is based on the control-volume approach with a boundary-fitted non-orthogonal coordinate system. This work intends to obtain functional relationships for the interfacial convective heat transfer coefficient for turbulent low in packed beds.

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