heat transfer in the core flow, thermal and hydrodynamic performance
for different porous radius ratios Rrad are investigated
numerically to make up deficiencies in experiments. The permeability
K and inertia coefficient CF of the porous media in numerical
investigation are determined by experimental data (see Section 4)
as described earlier. Furthermore, the principle of field synergy
(presented by Guo et al. [21]) is applied to analyze the synergy between
temperature profiles and velocity profiles in the fluid flow.
At last, numerical simulation with the same condition of the experiments
is done for comparison.