Title: Acoustic wave propagation in a macroscopically inhomogeneous porous medium saturated by a fluid
Authors: De Ryck, Laurent ×
Groby, J P
Leclaire, P
Lauriks, Walter
Wirgin, A
Fellah, Zine El Abidine
Depollier, C #
Issue Date: Apr-2007
Publisher: The American Institute of Physics
Series Title: Applied Physics Letters vol:90 issue:18
Article number: 181901
Abstract: The equations of motion in a macroscopically inhomogeneous porous medium saturated by a fluid are derived. As a verification of their validity, these equations are reduced and solved for rigid frame porous systems. The reflection and transmission coefficients and their corresponding time signals are calculated numerically using wave splitting Green's function approach for a two-layer porous system considered as one single porous layer with a sudden change in physical properties. The results are compared to experimental results and to those of the classical transfer matrix method for materials saturated by air in the ultrasonic frequency range. (c) 2007 American Institute of Physics.
ISSN: 0003-6951
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Soft Matter and Biophysics
× corresponding author
# (joint) last author

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