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Wave Propagation in Porous Materials

In: Computational and Experimental Studies of Acoustic Waves

Author

Listed:
  • Zine El Abiddine Fellah
  • Mohamed Fellah
  • Claude Depollier
  • Erick Ogam
  • Farid G Mitri

Abstract

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.

Suggested Citation

  • Zine El Abiddine Fellah & Mohamed Fellah & Claude Depollier & Erick Ogam & Farid G Mitri, 2018. "Wave Propagation in Porous Materials," Chapters, in: Mahmut Reyhanoglu (ed.), Computational and Experimental Studies of Acoustic Waves, IntechOpen.
    • Handle: RePEc:ito:pchaps:125476
    DOI: 10.5772/intechopen.72215
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    More about this item

    Keywords

    acoustic porous materials; porosity; tortuosity; viscous and thermal charactertistic lengths; fractional derivatives;
    All these keywords.

    JEL classification:

    • C60 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - General

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