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Thursday, May 14, 2009
09:00 AM - 11:30 AM
CNLS Conference Room (TA-3, Bldg 1690)


Floaters on the water and droplets in clouds: multifractals and caustics

Gregory Falkovich
Weizmann Institute

Surface tension violates the Archimedes' law, which makes small floaters inertial - they displace more/less water than their weight depending on whether they are made of hydrophilic/hydrophobic material. In particular, that makes floaters ideal to study general properties of inertial particles in different flows, modeling, for instance, fuel droplets in internal combustion engines and water droplets in clouds. In turbulent flows, the distribution of inertial particles is a multifractal with superimposed caustics. The talk will present a brief review of the theory of two-phase flows and experiments on small floaters.

Host: Misha Chertkov, T-4