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Article Dans Une Revue International Journal for Numerical Methods in Engineering Année : 2023

Fingering and strain localization in porous media during imbibition processes

Résumé

Fingered infiltration of a wetting fluid through a porous network is a widely studied subject in the field of fluid mechanics. However, the effect of this heterogeneous percolation on the response of granular materials, in particular fine‐grained soils, is a poorly investigated and badly understood topic which deserves deep analysis, considering, among others, possible applications in soil remediation and underground energy storage. This paper presents a first application of a new formulation of unsaturated poromechanics based on a phase field approach that allows to characterize on the one hand the occurrence of fingering hydraulic instabilities and on the other one to capture their effects on the irreversible, and possible unstable, deformation of the solid skeleton. The envisaged application concerns the behavior of fine‐grained soils whose dilatant/contractant behavior is more and more attracting the interest of the scientific community both in the fields of experimental research and numerical modeling.
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Dates et versions

hal-04223416 , version 1 (11-12-2023)

Identifiants

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Mohammed Zaim, Siddhartha Harsha Ommi, Frédéric Collin, Panagiotis Kotronis, Giulio Sciarra. Fingering and strain localization in porous media during imbibition processes. International Journal for Numerical Methods in Engineering, 2023, 124 (16), pp.3554-3581. ⟨10.1002/nme.7261⟩. ⟨hal-04223416⟩
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