Numerical investigation of forced convection heat transfer in porous media using a thermal non-equilibrium model
2001
期刊
International Journal of Heat and Fluid Flow
In the present paper, the effects of viscous dissipation, the boundary condition
assumptions, thermal dispersion, particle diameters and the variable properties of oil on
convection heat transfer are analyzed using a numerical model including thermal non-
equilibrium assumption. The results, which are compared with experimental data, show that
the convection heat transfer in porous media can be predicted numerically using the thermal
non-equilibrium model with the ideal constant wall heat flux boundary condition. Viscous
dissipation weakens the convection heat transfer from the fluid to the wall in the porous
media. However, under practical conditions the influence of viscous dissipation on the
convection heat transfer is small. The fluid temperature in the bottom part of the channel is
higher than in the core region of the channel when the lower plate is adiabatic due to the
