Global Diffusion in a Realistic Three-Dimensional Time-Dependent Nonturbulent Fluid Flow

preprint1995arXivOpen access

Abstract

We introduce and study the first model of an experimentally realizable three-dimensional time-dependent nonturbulent fluid flow to display the phenomenon of global diffusion of passive-scalar particles at arbitrarily small values of the nonintegrable perturbation. This type of chaotic advection, termed {\it resonance-induced diffusion\/}, is generic for a large class of flows.

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