The airside heat transfer performance of three aluminum foam samples and three modified carbon foam samples are examined for comparison. The aluminum foam samples have a bulk density of 216 kg/m3 with pore sizes of 0.5, 1, and 2 mm. The modified carbon foam samples have bulk densities of 283, 374, and 403 kg/m3 and machined flow passages of 4 mm in diameter. The samples were placed in a forced convection arrangement using a cartridge heater as the heat source and ambient air as the sink. A constant heat flux of 30.6 kW/m2 is applied throughout the experiments with the mean air velocity ranging from 1 to 9 m/s as the control parameter. The Brinkman extended Darcy momentum model and a two equation non-equilibrium heat transfer model are employed to extract the interstitial heat transfer coefficients. Pressure drop measurements are correlated with the Darcy-Forcheimer relation. Empirical heat transfer correlations for the aluminum and carbon foam samples are provided.

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