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Numerical upscaling of the permeability of a randomly cracked porous medium

  • Université Paris-Est
  • Université Paris-Est

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Résumé

The equivalent permeability of a randomly cracked porous material is studied using a finite element program in which a four-nodes zero-thickness element is implemented for modelling the cracks. The numerical simulations are performed for geometries with different cracks densities and for different values of matrix permeability and crack conductivity, but the cracks length are taken equal to one. The method used for determination of the equivalent permeability resulted in a perfectly symmetric equivalent permeability tensor for each case. Based on the obtained results, a simple relation is presented for the equivalent permeability of a randomly cracked porous material as a function of the matrix permeability and the cracks density and conductivity. This relation is then generalized for the cracks of any length using a linear transformation.

langue originaleAnglais
titre12th International Conference on Computer Methods and Advances in Geomechanics 2008
Pages2536-2543
Nombre de pages8
étatPublié - 1 déc. 2008
Modification externeOui
Evénement12th International Conference on Computer Methods and Advances in Geomechanics 2008 - Goa, Inde
Durée: 1 oct. 20086 oct. 2008

Série de publications

Nom12th International Conference on Computer Methods and Advances in Geomechanics 2008
Volume4

Une conférence

Une conférence12th International Conference on Computer Methods and Advances in Geomechanics 2008
Pays/TerritoireInde
La villeGoa
période1/10/086/10/08

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