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  • We consider acoustic waves in fluid-saturated periodic media with dual porosity. At the mesoscopic level, the fluid motion is governed by the Darcy flow model extended by inertia terms and by the mass conservation equation. In this study, assuming the porous skeleton is rigid, the aim is to distinguish the effects of the strong heterogeneity in the permeability coefficients. Using the asymptotic homogenization method we derive macroscopis equations and obtain the dispersion relationship for harmonic waves. The double porosity gives rise to an extra homogenized coefficient of dynamic compressibility which is not obtained in the upscaled single porosity model. Both the single and double porosity models are compared using an example illustrating wave propagation in layered media.
  • We consider acoustic waves in fluid-saturated periodic media with dual porosity. At the mesoscopic level, the fluid motion is governed by the Darcy flow model extended by inertia terms and by the mass conservation equation. In this study, assuming the porous skeleton is rigid, the aim is to distinguish the effects of the strong heterogeneity in the permeability coefficients. Using the asymptotic homogenization method we derive macroscopis equations and obtain the dispersion relationship for harmonic waves. The double porosity gives rise to an extra homogenized coefficient of dynamic compressibility which is not obtained in the upscaled single porosity model. Both the single and double porosity models are compared using an example illustrating wave propagation in layered media. (en)
Title
  • Homogenization of acoustic waves in strongly heterogenous porous structures
  • Homogenization of acoustic waves in strongly heterogenous porous structures (en)
skos:prefLabel
  • Homogenization of acoustic waves in strongly heterogenous porous structures
  • Homogenization of acoustic waves in strongly heterogenous porous structures (en)
skos:notation
  • RIV/49777513:23520/13:43918775!RIV14-GA0-23520___
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
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  • P(GAP101/12/2315)
http://linked.open...iv/cisloPeriodika
  • 7
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 77997
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  • RIV/49777513:23520/13:43918775
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  • layered media; aoustic waves; wave dispersion; double-porosity; asymptotic homogenization; porous media (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [34FED6DC639E]
http://linked.open...i/riv/nazevZdroje
  • WAVE MOTION
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 50
http://linked.open...iv/tvurceVysledku
  • Rohan, Eduard
issn
  • 0165-2125
number of pages
http://localhost/t...ganizacniJednotka
  • 23520
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