Interplay between elastic instabilities and shear-banding: three categories of Taylor–Couette flows and beyond
In the past twenty years, shear-banding flows have been probed by various techniques,
such as rheometry, velocimetry and flow birefringence. In micellar solutions, many of the …
such as rheometry, velocimetry and flow birefringence. In micellar solutions, many of the …
Criterion for purely elastic Taylor-Couette instability in the flows of shear-banding fluids
MA Fardin, TJ Ober, C Gay, G Grégoire… - Europhysics …, 2011 - iopscience.iop.org
In the past twenty years, shear-banding flows have been probed by various techniques,
such as rheometry, velocimetry and flow birefringence. In micellar solutions, many of the …
such as rheometry, velocimetry and flow birefringence. In micellar solutions, many of the …
Distinguishing shear banding from shear thinning in flows with a shear stress gradient
Shear banding occurs in complex fluids that exhibit a non-monotonic constitutive instability,
such as wormlike micelles, and potentially also in polymeric fluids with presumably …
such as wormlike micelles, and potentially also in polymeric fluids with presumably …
[PDF][PDF] Instabilities in wormlike micelle systems: From shear-banding to elastic turbulence
Shear-banding is ubiquitous in complex fluids. It is related to the organization of the flow into
macroscopic bands bearing different viscosities and local shear rates and stacked along the …
macroscopic bands bearing different viscosities and local shear rates and stacked along the …
Comparison between shear banding and shear thinning in entangled micellar solutions
YT Hu, C Palla, A Lips - Journal of Rheology, 2008 - pubs.aip.org
We have studied the concentration dependence of velocity profiles for a micellar system
consisting of cetylpyridium chloride and sodium salicylate and demonstrated a shear …
consisting of cetylpyridium chloride and sodium salicylate and demonstrated a shear …
Flow-induced structures versus flow instabilities
The Taylor-Couette flow of a dilute micellar system known to generate shear-induced
structures is investigated through simultaneous rheometry and ultrasonic imaging. We show …
structures is investigated through simultaneous rheometry and ultrasonic imaging. We show …
Shear banding in time-dependent flows of polymers and wormlike micelles
RL Moorcroft, SM Fielding - Journal of Rheology, 2014 - pubs.aip.org
We study theoretically the formation of shear bands in time-dependent flows of polymeric
and wormlike micellar surfactant fluids, focussing on the protocols of step shear stress, step …
and wormlike micellar surfactant fluids, focussing on the protocols of step shear stress, step …
Shear-banding structure orientated in the vorticity direction observed for equimolar micellar solution
The non-monotonic shear flow of a viscoelastic equimolar aqueous surfactant solution
(cetylpyridinium chloride-sodium salicylate) is investigated rheologically and optically in a …
(cetylpyridinium chloride-sodium salicylate) is investigated rheologically and optically in a …
Time dependent flow in equimolar micellar solutions: transient behaviour of the shear stress and first normal stress difference in shear induced structures coupled with …
P Fischer - Rheologica Acta, 2000 - Springer
Recently we studied time dependent structural changes that are coupled with flow
instabilities (Fischer 1998; Wheeler 1998; Fischer 2000). Within a stability analysis, a …
instabilities (Fischer 1998; Wheeler 1998; Fischer 2000). Within a stability analysis, a …
Nonaxisymmetric instability of shear-banded Taylor-Couette flow
Recent experiments show that shear-banded flows of semidilute wormlike micelles in Taylor-
Couette geometry exhibit a flow instability in the form of Taylor-like vortices. Here we perform …
Couette geometry exhibit a flow instability in the form of Taylor-like vortices. Here we perform …