Journal
EXPERIMENTS IN FLUIDS
Volume 41, Issue 4, Pages 665-672Publisher
SPRINGER
DOI: 10.1007/s00348-006-0194-x
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Steady-state unidirectional pressure-drop measurements for incompressible airflow through nine open-cell aluminum foam samples, having different porosities and pore densities, were undertaken. The pressure drop increased with increasing Darcian velocity following the quadratic Forchheimer equation. The lower-porosity foam produced significantly higher pressure drop. Both the permeability and the form drag coefficient correlated well with the porosity. The correlations predicted the results of some previous studies reasonably well, especially for the low-pore-density foam.
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