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Boundary layer (shear-band) in frustrated viscoplastic flows

Thibaud Chevalier 1 Stéphane Rodts 1 Xavier Chateau 2 Jalila Boujlel 2 Mathilde Maillard 3 Philippe Coussot 1 
1 Physique des milieux poreux
navier umr 8205 - Laboratoire Navier
2 Rhéophysique
navier umr 8205 - Laboratoire Navier
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.
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Submitted on : Tuesday, December 10, 2013 - 4:13:18 PM
Last modification on : Monday, May 9, 2022 - 10:58:01 AM
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Thibaud Chevalier, Stéphane Rodts, Xavier Chateau, Jalila Boujlel, Mathilde Maillard, et al.. Boundary layer (shear-band) in frustrated viscoplastic flows. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2013, 102, pp.48102. ⟨10.1209/0295-5075/102/48002⟩. ⟨hal-00911356⟩



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