Multiscale FE simulation of diffusion-deformation processes in homogenized dual-porous media

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F12%3A43896597" target="_blank" >RIV/49777513:23520/12:43896597 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.matcom.2011.02.011" target="_blank" >http://dx.doi.org/10.1016/j.matcom.2011.02.011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matcom.2011.02.011" target="_blank" >10.1016/j.matcom.2011.02.011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Multiscale FE simulation of diffusion-deformation processes in homogenized dual-porous media

Popis výsledku v původním jazyce

The paper deals with a model of the homogenized fluid saturated porous material which recently was proposed by the authors. The model was obtained using the asymptotic analysis of the Biot type medium with the dual porosity. The homogenized macroscopic model is featured by the fading memory effects arising from the microflow in the dual porosity. We derive the steady state formulations and discuss several topics related to the numerical implementation of the model, namely the solution procedure of the discretized microscopic problems, evaluation of the homogenized coefficients and an approximation of the convolution integrals of the macroscopic model, so that the fading memory effects are computationally tractable. Numerical examples are presented to illustrate the approximation schemes discussed in the paper. All computations were performed using the in-house developed finite element code SfePy allowing the multiscale simulations. Besides various potential engineering applications, th

Název v anglickém jazyce

Multiscale FE simulation of diffusion-deformation processes in homogenized dual-porous media

Popis výsledku anglicky

The paper deals with a model of the homogenized fluid saturated porous material which recently was proposed by the authors. The model was obtained using the asymptotic analysis of the Biot type medium with the dual porosity. The homogenized macroscopic model is featured by the fading memory effects arising from the microflow in the dual porosity. We derive the steady state formulations and discuss several topics related to the numerical implementation of the model, namely the solution procedure of the discretized microscopic problems, evaluation of the homogenized coefficients and an approximation of the convolution integrals of the macroscopic model, so that the fading memory effects are computationally tractable. Numerical examples are presented to illustrate the approximation schemes discussed in the paper. All computations were performed using the in-house developed finite element code SfePy allowing the multiscale simulations. Besides various potential engineering applications, th

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F09%2F0740" target="_blank" >GA106/09/0740: Mikrostrukturálně orientované hierarchické modelování prokrvení mozku pro vyhodnocení CT perfúzního vyšetření</a><br>

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

Název periodika

Mathematics and Computers in Simulation

ISSN

0378-4754

e-ISSN

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Svazek periodika

82

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

29

Strana od-do

1744-1772

Kód UT WoS článku

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EID výsledku v databázi Scopus

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