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Competition between shear banding and wall slip in wormlike micelles
Paul Lettinga, Sébastien Manneville
The interplay between shear band (SB) formation and boundary conditions (BC) is investigated in wormlike micellar systems (CPyCl--NaSal) using ultrasonic velocimetry coupled to sta…
The yielding dynamics of a colloidal gel
Thomas Gibaud, Frelat Damien, Sébastien Manneville
Attractive colloidal gels display a solid-to-fluid transition as shear stresses above the yield stress are applied. This shear-induced transition is involved in virtually any appli…
Shear-induced fragmentation of Laponite suspensions
Thomas Gibaud, Catherine Barentin, Nicolas Taberlet +1
Simultaneous rheological and velocity profile measurements are performed in a smooth Couette geometry on Laponite suspensions seeded with glass microspheres and undergoing the shea…
Wall slip, shear banding, and instability in the flow of a triblock copolymer micellar solution
S. Manneville, A. Colin, G. Waton +1
The shear flow of a triblock copolymer micellar solution (PEO--PPO--PEO Pluronic P84 in brine) is investigated using simultaneous rheological and velocity profile measurements in t…
Shear-thickening induced by Faraday waves in dilute wormlike micelles
P. Ballesta, S. Manneville
We investigate the effect of surface waves generated by the Faraday instability on a shear-thickening surfactant solution under vertical vibrations. We show that a prolonged oscill…
The Faraday instability in wormlike micelle solutions
P. Ballesta, S. Manneville
The behaviour of semi-dilute wormlike micelle solutions under vertical vibrations is investigated using classical measurements of the Faraday instability threshold along with two n…