Flows, patterns & instabilities
Credit T. Divoux @LPENSL
COMPLEX FLOWS
Thibaut Divoux, Thomas Gibaud, Sylvain Joubaud, Sébastien Manneville, Stéphane Santucci, Nicolas Taberlet, Valérie Vidal
We study complex flows of foams, gels, dry granulars or suspensions and focus in particular on:
- Shear-banding & wall-slip dynamics
- Hysteresis during drainage/imbibition cycles
- Bubble/particle interaction during suspension drainage
- Aggregation & segregation in magnetic grains avalanches
- Sand avalanches over a mesh
PATTERNS & INSTAbILITIES
Thibaut Divoux, Thomas Gibaud, Sylvain Joubaud, Sébastien Manneville, Stéphane Santucci, Nicolas Taberlet, Valérie Vidal
Pattern formation and the emergence of instabilities during complex fluid flows is investigated. Among many examples:
- Log-rolling instabilities in suspensions
- Elastic instabilities and turbulence in polymeric fluids
- Capillary washboarding during drainage of a frictional fluid
- Surface instabilities of a slider over dry grains
- Stick-slip during tape peeling