4 papers · 1 filter
A tentative geometrical description of static dilatancy in liquid foams: ordered 2D and 3D foams
Pierre Rognon, François Molino, Cyprien Gay
Liquid foams have been observed to behave like immersed granular materials in at least one respect: deformation tends to raise their liquid contents, a phenomenon called dilatancy.…
Plateau border bulimia transition: discontinuities expected in three simple experiments on 2D liquid foams
Pierre Rognon, François Molino, Cyprien Gay
We describe the geometry of foams squeezed between two solid plates (2D GG foams) in two main asymptotic regimes: fully dry floor tiles and dry pancakes. We predict an abrupt trans…
Dense granular flows: interpolating between grain inertia and fluid viscosity based constitutive laws
Pierre Rognon, Cyprien Gay
A scalar constitutive law was recently obtained for dense granular flows from a two-grain argument, both in the inertial regime (grain inertia) and in the viscous regime. As the re…
Dense granular flows: two-particle argument accounts for friction-like constitutive law with threshold
Pierre Rognon, Cyprien Gay
A scalar constitutive law is obtained for dense granular flows, both in the inertial regime where the grain inertia dominates, and in the viscous regime. Considering a pair of grai…