Statistics of Lagrangian Trajectories in a Rotating Turbulent Flow
Fluid Dynamics
2019-10-23 v2
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.
Keywords
Cite
@article{arxiv.1905.10741,
title = {Statistics of Lagrangian Trajectories in a Rotating Turbulent Flow},
author = {Priyanka Maity and Rama Govindarajan and Samriddhi Sankar Ray},
journal= {arXiv preprint arXiv:1905.10741},
year = {2019}
}
Comments
The manuscript contains 6 pages and 7 figures