Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Particle-Size-Exclusion Clogging Regimes in Porous Media

Abstract : From observations of the progressive deposition of noncolloidal particles by geometrical exclusion effects inside a 3D model porous medium, we get a complete dynamic view of particle deposits over a full range of regimes from transport over a long distance to clogging and caking. We show that clogging essentially occurs in the form of an accumulation of elements in pore size clusters, which ultimately constitute regions avoided by the flow. The clusters are dispersed in the medium, and their concentration (number per volume) decreases with the distance from the entrance; caking is associated with the final stage of this effect (for a critical cluster concentration at the entrance). A simple probabilistic model, taking into account the impact of clogging on particle transport, allows us to quantitatively predict all these trends up to a large cluster concentration, based on a single parameter: the clogging probability, which is a function of the confinement ratio. This opens the route towards a unification of the different fields of particle transport, clogging, caking, and filtration.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [45 références]  Voir  Masquer  Télécharger

https://hal-enpc.archives-ouvertes.fr/hal-02912560
Contributeur : Romain Boistel <>
Soumis le : jeudi 6 août 2020 - 10:45:26
Dernière modification le : vendredi 7 août 2020 - 03:43:11

Fichier

Particle-Size-Exclusion Cloggi...
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Gaétan Gerber, Stéphane Rodts, Patrick Aimedieu, Pamela Faure, Philippe Coussot. Particle-Size-Exclusion Clogging Regimes in Porous Media. Physical Review Letters, American Physical Society, 2018, 120 (14), ⟨10.1103/PhysRevLett.120.148001⟩. ⟨hal-02912560⟩

Partager

Métriques

Consultations de la notice

46

Téléchargements de fichiers

39