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arXiv · 1905.10741

Statistics of Lagrangian Trajectories in a Rotating Turbulent Flow

Priyanka Maity·Rama Govindarajan·Samriddhi Sankar Ray
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Abstract

We investigate the Lagrangian statistics of three-dimensional rotating turbulent flows through direct numerical simulations. We find that the emergence of coherent vortical structures because of the Coriolis force leads to a suppression of the "flight-crash" events reported by Xu, et al. [Proc. Natl. Acad. Sci. (U.S.A) 111, 7558 (2014)]. We perform systematic studies to trace the origins of this suppression in the emergent geometry of the flow and show why such a Lagrangian measure of irreversibility may fail in the presence of rotation.

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Priyanka Maity, Rama Govindarajan, Samriddhi Sankar Ray. 2019-05-26. Statistics of Lagrangian Trajectories in a Rotating Turbulent Flow. https://doi.org/10.1103/physreve.100.043110

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