Regensburg 2013 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 26: Focus: Wetting on smooth and rough surfaces: From spreading to superhydrophobicity II

CPP 26.1: Hauptvortrag

Mittwoch, 13. März 2013, 15:00–15:30, H34

Leidenfrost Dynamics — •David Quéré — ESPCI & Ecole polytechnique, Paris

We discuss the Leidenfrost phenomenon, and particularly focus on its dynamical aspects: how can liquids levitate on a hot solid? what are their particular shape and evolution? what is the friction of these liquid hovercrafts when they move? how do they behave on an irregular solid? is it possible to create a Leidenfrost situation without heat? We'll see that the absence of contact between a substrate and a liquid deeply modifies the usual laws of wetting.