Title: Transient acoustic wave propagation in air-saturated porous media at low frequencies
Authors: Fellah, Zine El Abidine ×
Fellah, M
Mitri, F. G
Sebaa, Naima
Lauriks, Walter
Depollier, C #
Issue Date: Oct-2007
Publisher: Amer inst physics
Series Title: Journal of Applied Physics vol:102 issue:8
Article number: 084906
Abstract: This paper provides a temporal model of the direct scattering problem for the propagation of transient low frequency waves in a homogeneous isotropic slab of porous material having a rigid frame. In this model, the inertial effects are described by the low frequency approximation of the tortuosity. The viscous and thermal losses of the medium are modeled by viscous and thermal permeabilities. The propagation equation is derived and solved analytically in the time domain. An original expression of Green's function of the porous medium is obtained. The transmission scattering operator of the first transmitted wave is calculated and compared with experimental data. (C) 2007 American Institute of Physics.
ISSN: 0021-8979
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Soft Matter and Biophysics
× corresponding author
# (joint) last author

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