Articles | Volume 24, issue 2
https://doi.org/10.5194/npg-24-189-2017
https://doi.org/10.5194/npg-24-189-2017
Research article
 | 
03 May 2017
Research article |  | 03 May 2017

Trajectory encounter volume as a diagnostic of mixing potential in fluid flows

Irina I. Rypina and Lawrence J. Pratt

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Latest update: 27 Mar 2024
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Short summary
Fluid parcels exchange water properties when coming into contact with each other, leading to mixing. The trajectory encounter volume, defined here as the volume of fluid that passes close to a reference trajectory over a finite time interval, is introduced as a measure of the mixing potential of a flow. Regions with a low encounter volume (the cores of coherent eddies) have a low mixing potential. Regions with a large encounter volume (turbulent or chaotic regions) have a high mixing potential.