Dynamics of Finite-Size Particles in Chaotic Fluid Flows

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Abstract

We review recent advances on the dynamics of finite–size particles advected by chaotic fluid flows, focusing on the phenomena caused by the inertia of finite–size particles which have no counterpart in traditionally studied passive tracers. Particle inertia enlarges the phase space and makes the advection dynamics much richer than the passive tracer dynamics, because particles’ trajectories can diverge from the trajectories of fluid parcels. We cover both confined and open flow regimes, and we also discuss the dynamics of interacting particles, which can undergo fragmentation and coagulation.