Écoulements Marangoni et Films de savon
Orateur : Isabelle Cantat
Institut de Physique de Rennes
Abstract : Surface tension gradients induce flows, known as Marangoni flows. They play an enhanced role in systems with a large amount of free interfaces, such as foams, emulsions and thin liquid films. In such systems, the interfaces are deformable, making the numerical or analytical computations of flows difficult. The presence of surfactants, responsible for the Marangoni stress, still increases the complexity of the problem, which involves interface/bulk exchange and surfactant diffusion both in the bulk and at the interface. We will present few examples of Marangoni flows, with both an experimental and a scaling law approach.
Date et lieu : le Vendredi 27 Janvier, 11h à l’IUSTI