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Porous metals could potentially be used as acoustic liners to damp aircraft engine noise. We test the sound absorption of porous metals with different structures and porosities under air flow conditions. It finds that the effect of air flow on the sound adsorption of porous metals depends on the pore structures and porosities.

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This page is a summary of: Sound Absorption Properties of Porous Metals Under Grazing Flow Conditions, AIAA Journal, April 2022, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/1.j060872.
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