Influence of lateral boundaries on transport in quasi-two-dimensional flow

Chaos
Lei Fang, Nicholas T Ouellette

Abstract

We assess the impact of lateral coastline-like boundaries on mixing and transport in a laboratory quasi-two-dimensional turbulent flow using a transfer-operator approach. We examine the most coherent sets in the flow, as defined by the singular vectors of the transfer operator, as a way to characterize its mixing properties. We study three model coastline shapes: a uniform boundary, a sharp embayment, and a sharp headland. Of these three, we show that the headland affects the mixing deep into the flow domain because it has a tendency to pin transport barriers to its tip. Our results may have implications for the siting of coastal facilities that discharge into the ocean.

References

Jul 5, 2002·Physical Review Letters·Greg A VothJ P Gollub
Nov 13, 2008·Physical Review Letters·Nicholas T OuelletteJ P Gollub
Nov 28, 2006·Geophysical Research Letters·M J OlascoagaL K Shay
Aug 16, 2013·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Douglas H KelleyNicholas T Ouellette
Sep 4, 2015·Chaos·Marko Budišić, Jean-Luc Thiffeault
Jul 15, 2016·Physical Review. E·Alireza HadjighasemGeorge Haller
Jun 4, 2017·Chaos·Alireza HadjighasemGeorge Haller

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