Shear Banding from lattice kinetic models with competing interactions

Abstract

Soft Glassy Materials, Non Linear Rheology, Lattice Kinetic models, frustrated phase separation} We present numerical simulations based on a Boltzmann kinetic model with competing interactions, aimed at characterizating the rheological properties of soft-glassy materials. The lattice kinetic model is shown to reproduce typical signatures of driven soft-glassy flows in confined geometries, such as Herschel-Bulkley rheology, shear-banding and histeresys. This lends further credit to the present lattice kinetic model as a valuable tool for the theoretical/computational investigation of the rheology of driven soft-glassy materials under confinement.

8 Pages, 5 Figures

References in corpus (4)

• Mesoscopic lattice Boltzmann modeling of soft-glassy systems: theory and simulations
• Elastic turbulence in shear banding wormlike micelles
• Wall slip, shear banding, and instability in the flow of a triblock copolymer micellar solution
• Herschel-Bulkley rheology from lattice kinetic theory of soft-glassy materials