Lagrangian perspectives on turbulent superstructures in Rayleigh-Bénard convection

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We analyze large‐scale patterns in three‐dimensional turbulent convection in a horizontally extended square convection cell by means of Lagrangian particle trajectories calculated in direct numerical simulations. Different Lagrangian computational methods, i.e. finite‐time Lyapunov exponents, spectral and density‐based clustering and transfer operator approaches, are used to detect these large‐scale structures, which are denoted as turbulent superstructures of convection.
Original languageEnglish
Article number201900201
JournalProceedings in applied mathematics and mechanics
Volume19
Issue number1
Number of pages2
ISSN1617-7061
DOIs
Publication statusPublished - 01.11.2019
Event90th Annual Meeting of the International Association of Applied Mathematics and Mechanics - 2019 - Universität Wien, Vienna, Austria
Duration: 18.02.201922.02.2019
Conference number: 90
https://jahrestagung.gamm-ev.de/index.php/2019/2019-annual-meeting

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