Boundary layer (shear-band) in frustrated viscoplastic flows

CHEVALIER ; RODTS ; CHATEAU ; BOUJLEL ; MAILLARD ; COUSSOT

Type de document
ARTICLE A COMITE DE LECTURE REPERTORIE DANS BDI (ACL)
Langue
anglais
Auteur
CHEVALIER ; RODTS ; CHATEAU ; BOUJLEL ; MAILLARD ; COUSSOT
Résumé / Abstract
We show that frustrated creep flows of yield stress fluids give rise to a boundary layer, which takes the form of a liquid region of uniform significant thickness separating two solid regions. In this boundary layer the shear rate is approximately constant for a given flow rate and the layer thickness varies extremely slowly with the flow rate.
Source