Dynamic behaviors and absorption of double porosity media

Authors

  • X. Olny Ecl. Natl. Travaux Publics de L'Etat, Dept. Genie Civ./Bat., URA CNRS 1652, Vaulx-en-Velin, 69518 Cedex, France
  • C. Boutin Ecl. Natl. Travaux Publics de L'Etat, Dept. Genie Civ./Bat., URA CNRS 1652, Vaulx-en-Velin, 69518 Cedex, France

Keywords:

Absorption, Compressibility, Diffusion, Mechanical permeability, Viscoelasticity, Wave propagation, Micropores

Abstract

The coupling effects that occur in double porosity media in the two fluid networks are described. Two macroscopic descriptions are proposed and compared to the experimental measurements. Three scales are necessary to describe the material: the macroscale, the mesoscale, and the microscale. Two main behaviors, depending on the contrast of static permeability between the pores and the micropores are briefly described. Measurements are made using standing wave tubes, in the direction of perforations.

Additional Files

Published

2000-09-01

How to Cite

1.
Olny X, Boutin C. Dynamic behaviors and absorption of double porosity media. Canadian Acoustics [Internet]. 2000 Sep. 1 [cited 2024 Jun. 13];28(3):88-9. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1303

Issue

Section

Proceedings of the Acoustics Week in Canada

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