Viscoelastic shear banding in foam

Abstract

Shear banding is an important feature of flow in complex fluids. Essentially, shear bands refer to the coexistence of flowing and non-flowing regions in driven material. Understanding the possible sources of shear banding has important implications for a wide range of flow applications. In this regard, quasi-two dimensional flow offers a unique opportunity to study competing factors that result in shear bands. One proposal is the competition between intrinsic dissipation and an external source of dissipation. In this paper, we report on the experimental observation of the transition between different classes of shear-bands that have been predicted to exist in cylindrical geometry as the result of this competition [R. J. Clancy, E. Janiaud, D. Weaire, and S. Hutzlet, Eur. J. Phys. E, {\bf 21}, 123 (2006)].

References in corpus (5)

• Yielding and flow in adhesive and non-adhesive concentrated emulsions
• Rate Dependence and Role of Disorder in Linearly Sheared Two-Dimensional Foams
• Impact of boundaries on velocity profiles in bubble rafts
• Two dimensional foam rheology with viscous drag
• Flow transitions in two-dimensional foams

Cited by in corpus (7)

• On the existence of a simple yield stress fluid behavior
• Couette Flow of Two-Dimensional Foams
• Investigation of shear banding in three-dimensional foams
• Novel Experimentally Observed Phenomena in Soft Matter
• Clogging and avalanches in quasi-two-dimensional emulsion hopper flow
• Large deviation statistics of non-equilibrium fluctuations in a sheared model-fluid
• Shear localisation with 2D Viscous Froth and its relation to the Continuum Model