| Wed September 29th 2010 16:00 ZH286 | Seminar | Soft lubrication: hydrodynamic interaction of deformable bodies Jacco Snoeijer |
Details:We consider the classical problem of a solid moving close to a wall while it is lubricated by a thin layer of liquid. When the object "soft" with respect to the loading, the solid deformation becomes significant and gives rise to an intricate elasto-hydrodynamic coupling. Here we analyze the limit in which the external loading is large compared to viscous forces. It turns out that lubrication effects are localized in thin self-similar regions near the inlet and outlet of the contact. We show how these zones determine the liquid thickness and point out the analogy with bubbles moving near a wall. | ||
