Deformation-dependent permeability in a model of homogenized porous medium

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F12%3A43916297" target="_blank" >RIV/49777513:23520/12:43916297 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Deformation-dependent permeability in a model of homogenized porous medium

Popis výsledku v původním jazyce

We report on the homogenization-based modeling of the fluid-solid interaction which leads to the Biot poroelastic continuum coupled with the Darcy flow. The permeability coefficients can be computed for a specific geometry of the microstructure using homogenization of the Stokes flow. To couple the flow with the deformation of the poroelastic continuum, a corrected permeability tensor is introduced using the shape sensitivity related to the microscopic configuration in a form of the 1st degree Taylor polynomial with respect to the strain and pore pressure. The two-scale model is implemented using the SfePy finite element solver and tested for simple geometries. A significant influence of the solution-dependent permeability on the actual macroscopic deformation state has been observed.

Název v anglickém jazyce

Deformation-dependent permeability in a model of homogenized porous medium

Popis výsledku anglicky

We report on the homogenization-based modeling of the fluid-solid interaction which leads to the Biot poroelastic continuum coupled with the Darcy flow. The permeability coefficients can be computed for a specific geometry of the microstructure using homogenization of the Stokes flow. To couple the flow with the deformation of the poroelastic continuum, a corrected permeability tensor is introduced using the shape sensitivity related to the microscopic configuration in a form of the 1st degree Taylor polynomial with respect to the strain and pore pressure. The two-scale model is implemented using the SfePy finite element solver and tested for simple geometries. A significant influence of the solution-dependent permeability on the actual macroscopic deformation state has been observed.

Druh

O - Ostatní výsledky

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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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

2012

Kód důvěrnosti údajů

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