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Localized shear generates three-dimensional transport.

08:00 EDT 1st April 2017 | BioPortfolio

Summary of "Localized shear generates three-dimensional transport."

Understanding the mechanisms that control three-dimensional (3D) fluid transport is central to many processes, including mixing, chemical reaction, and biological activity. Here a novel mechanism for 3D transport is uncovered where fluid particles are kicked between streamlines near a localized shear, which occurs in many flows and materials. This results in 3D transport similar to Resonance Induced Dispersion (RID); however, this new mechanism is more rapid and mutually incompatible with RID. We explore its governing impact with both an abstract 2-action flow and a model fluid flow. We show that transitions from one-dimensional (1D) to two-dimensional (2D) and 2D to 3D transport occur based on the relative magnitudes of streamline jumps in two transverse directions.

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This article was published in the following journal.

Name: Chaos (Woodbury, N.Y.)
ISSN: 1089-7682
Pages: 043102

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