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Experimental Demonstration of Entrance/Exit Effects on the Permeability Measurements of Porous Materials
Author(s) -
Baril E.,
Mostafid A.,
Lefebvre L.P.,
Medraj M.
Publication year - 2008
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800142
Subject(s) - materials science , pressure drop , porosity , drop (telecommunication) , permeability (electromagnetism) , composite material , porous medium , mechanics , mechanical engineering , physics , membrane , biology , engineering , genetics
The pressure drops were measured on metallic foams having uniform structure and different thicknesses, densities and pore sizes. Results indicated that entrance/exit effects can be a significant contributor to the pressure drop when the thickness of the specimens is small. Above a critical thickness, the contribution of the entrance effect on the total pressure drop becomes insignificant and classical models can be applied.