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27 April 2024

» arxiv » 1210.3325

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Vortices within vortices: hierarchical nature of vortex tubes in turbulence
Kai Bürger ; Marc Treib ; Rüdiger Westermann ; Suzanne Werner ; Cristian C Lalescu ; Alexander Szalay ; Charles Meneveau ; Gregory L Eyink ;
Date:	11 Oct 2012
Abstract:	The JHU turbulence database [1] can be used with a state of the art visualisation tool [2] to generate high quality fluid dynamics videos. In this work we investigate the classical idea that smaller structures in turbulent flows, while engaged in their own internal dynamics, are advected by the larger structures. They are not advected undistorted, however. We see instead that the small scale structures are sheared and twisted by the larger scales. This illuminates the basic mechanisms of the turbulent cascade.
Source:	arXiv, 1210.3325
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