Influence of the elastic deformation of a foam on its mobility in channels of linearly varying width - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics Année : 2014

Influence of the elastic deformation of a foam on its mobility in channels of linearly varying width

Benjamin Dollet
Isabelle Cantat

Résumé

We study foam flow in an elementary model porous medium consisting of a convergent and a divergent channel positioned side by side and possessing a fixed joint porosity. Configurations of converging or diverging channels are ubiquitous at the pore scale in porous media, as all channels linking pores possess a converging and diverging part. The resulting flow kinematics imposes asymmetric bubble deformations in the two channels, which modulate foam-wall friction and strongly impact the flux distribution. We measure, as well as quantitatively predict, the ratio of the fluxes in the two channels as a function of the channel widths by modeling pressure drops of both viscous and capillary origins. This study reveals the crucial importance of boundary-induced bubble deformation on the mobility of a flowing foam, resulting in particular in flow irreversibility
Fichier principal
Vignette du fichier
PL03352.pdf (993.66 Ko) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

insu-01068121 , version 1 (25-09-2014)

Identifiants

Citer

Benjamin Dollet, Sian A. Jones, Yves Méheust, Isabelle Cantat. Influence of the elastic deformation of a foam on its mobility in channels of linearly varying width. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2014, 90 (2), pp.art. n°023006. ⟨10.1103/PhysRevE.90.023006⟩. ⟨insu-01068121⟩
201 Consultations
263 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More