Dynamics and wave dispersion of strongly heterogeneous fluid-saturated porous media

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F17%3A43933059" target="_blank" >RIV/49777513:23520/17:43933059 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.proeng.2017.09.490" target="_blank" >https://doi.org/10.1016/j.proeng.2017.09.490</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.proeng.2017.09.490" target="_blank" >10.1016/j.proeng.2017.09.490</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamics and wave dispersion of strongly heterogeneous fluid-saturated porous media

Popis výsledku v původním jazyce

The paper deals with the homogenization approach to the modelling dynamics and wave dispersion of fluid-saturated periodic media. At the mesoscopic scale, the medium is described by the Biot model which is characterized by large contrasts in material properties of two mesoscopic constituents periodically distributed in the two porosities, called the matrix and the channels. By virtue of the homogenization, this contrast is related to the scale parameter which is subject of the asymptotic analysis. In the matrix, the material is much less permeable than in the channels, while the channels are much more compliant than the matrix. We analyze numerically properties of such a material using the homogenized double porosity model developed recently in [1]. The wave dispersion responses obtained using the double porosity model are compared with the analogous responses of a more standard homogenized model without the large contrast assumption (the single porosity model). The double porosity model exhibits much more important dispersion than the single porosity model.

Název v anglickém jazyce

Dynamics and wave dispersion of strongly heterogeneous fluid-saturated porous media

Popis výsledku anglicky

The paper deals with the homogenization approach to the modelling dynamics and wave dispersion of fluid-saturated periodic media. At the mesoscopic scale, the medium is described by the Biot model which is characterized by large contrasts in material properties of two mesoscopic constituents periodically distributed in the two porosities, called the matrix and the channels. By virtue of the homogenization, this contrast is related to the scale parameter which is subject of the asymptotic analysis. In the matrix, the material is much less permeable than in the channels, while the channels are much more compliant than the matrix. We analyze numerically properties of such a material using the homogenized double porosity model developed recently in [1]. The wave dispersion responses obtained using the double porosity model are compared with the analogous responses of a more standard homogenized model without the large contrast assumption (the single porosity model). The double porosity model exhibits much more important dispersion than the single porosity model.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10307 - Acoustics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Procedia Engineering

ISBN

—

ISSN

1877-7058

e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

1507-1512

Název nakladatele

Elsevier

Místo vydání

Amsterdam

Místo konání akce

Řím, Itálie

Datum konání akce

10. 9. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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