Ecole Normale Superieure
Tuesday, October 15, 2019
5:15 p.m. — room Jaures (29 rue d’Ulm)
The laws of wetting are well-known for drops on rigid surfaces, but these change dramatically when the substrate is soft and deformable. The combination of wetting and the intricacies of soft polymeric interfaces has provided many rich examples of fluid-structure interaction, both in terms of phenomenology as well as from the fundamental perspective. In this colloquium, I will discuss experimental and theoretical progress on the statics and dynamics of soft wetting. In this context, I will critically revisit the foundations of capillarity, such as the nature of solid surface tension, the microscopic mechanics near the contact line, and the dissipative mechanisms that lead to unexpected spreading dynamics.