THIS PRESENTATION IS CANCELLED (PAPER IS AVAILABLE IN PROCEEDINGS). Acoustic characterization of air saturated porous materials at audible frequencies

Abstract : An acoustic method based on sound transmission is proposed for measuring the thermal permeability, viscous and thermal tortuosity of porous materials having a rigid frame at low frequencies. The proposed method is based on a temporal model of the direct and inverse scattering problems for the propagation of transient audible frequency waves in a homogeneous isotropic slab of porous material having a rigid frame. The acoustic parameters are determined from the solution of the inverse problem. The minimization between experiment and theory is made in the time domain. Tests are performed using industrial plastic foams.
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Submitted on : Monday, April 23, 2012 - 10:00:00 AM
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Mustapha Sadouki, Mohamed Fellah, Zine El Abiddine Fellah, Erick Ogam, Claude Depollier. THIS PRESENTATION IS CANCELLED (PAPER IS AVAILABLE IN PROCEEDINGS). Acoustic characterization of air saturated porous materials at audible frequencies. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00810885⟩

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