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Chapitre D'ouvrage Année : 2018

Wave Propagation in Porous Materials

Résumé

This chapter provides different models for the acoustic wave propagation in porous materials having a rigid and an elastic frames. The direct problem of reflection and transmission of acoustic waves by a slab of porous material is studied. The inverse problem is solved using experimental reflected and transmitted signals. Both high-and low-frequency domains are studied. Different acoustic methods are proposed for measuring physical parameters describing the acoustic propagation as porosity, tortuosity, viscous and thermal characteristic length, and flow resistivity. Some advantages and perspectives of this method are discussed.
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Dates et versions

hal-01839659 , version 1 (15-07-2018)

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Zine El Abiddine Fellah, Mohamed Fellah, Claude Depollier, Erick Ogam, Farid G. Mitri. Wave Propagation in Porous Materials. Computational and Experimental Studies of Acoustic Waves, 2018, ⟨10.5772/intechopen.72215⟩. ⟨hal-01839659⟩
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