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13 papers · 1 filter
Invited review: Effect of temperature on a granular pile
Thibaut Divoux
As a fragile construction, a granular pile is very sensitive to minute external perturbations. In particular, it is now well established that a granular assembly is sensitive to va…
Statistical mechanics of homogeneous partly pinned fluid systems
Vincent Krakoviack
The homogeneous partly pinned fluid systems are simple models of a fluid confined in a disordered porous matrix obtained by arresting randomly chosen particles in a one-component b…
On 4-point correlation functions in simple polymer models
Johannes-Geert Hagmann, Karol K. Kozlowski, Nikos Theodorakopoulos +1
We derive an exact formula for the covariance of cartesian distances in two simple polymer models, the freely-jointed chain and a discrete flexible model with nearest-neighbor inte…
Superposition rheology of shear-banding wormlike micelles
P. Ballesta, M. P. Lettinga, S. Manneville
Wormlike micelle solutions are submitted to small-amplitude oscillatory shear superimposed to steady shear in the shear banding regime. By imposing a shear oscillation, the interfa…
Recent experimental probes of shear banding
S. Manneville
Recent experimental techniques used to investigate shear banding are reviewed. After recalling the rheological signature of shear-banded flows, we summarize the various tools for m…
Dynamics of crater formations in immersed granular materials
Germán Varas, Valérie Vidal, Jean-Christophe Géminard
We report the formation of a crater at the free surface of an immersed granular bed,locally crossed by an ascending gas flow. In two dimensions, the crater consists of two piles wh…