PANGAEA_969138
Predictability of decay events in transitional wall-bounded flows
Morón, Daniel; Vela-Martín, Alberto; Avila, Marc
Predictability of decay events in transitional wall-bounded flows
2024-07-03
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.969138
Investigator
Daniel
Morón
daniel.moron@zarm.uni-bremen.de
Earth Science
Binary Object
Binary Object (File Size)
Figure
Title
File name
Variable
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Description
geoscientificInformation
direct numerical simulation
predictability
transient chaos
transitiononal regime
Numerical simulated
Complete
unrestricted
CC-BY-4.0: Creative Commons Attribution 4.0 International
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
57 data points
text/tab-separated-values
Morón, Daniel; Vela-Martín, Alberto; Avila, Marc (2024): Predictability of decay events in transitional wall-bounded flows. Journal of Physics: Conference Series, 2753, 12009, https://doi.org/10.1088/1742-6596/2753/1/012009
Extreme events in turbulent flows are in general linked with sudden changes in the dynamics of the system. Despite the increasing interest in modelling these events, their predictability remains largely unexplored. Here we focus on the case of sudden turbulence/chaos decay in pipe flow and in a reduced-order model of shear flows (Moehlis, Faisst and Eckhardt,2004). We study the predictability of decay events with massive ensembles of simulations. For this purpose we introduce a new pseudo-spectral GPU code to perform fast simulations of turbulent pipe flow and describe a methodology to characterize predictability of decay events using the results of the ensembles of simulations. We report the decrease of predictability as one goes back in time with respect to a decay event, and show that this decrease does not need to be monotonic. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.969138"!
https://doi.org/10.1088/1742-6596/2753/1/012009
Predictability of decay events in transitional wall-bounded flows
DIF
9.4
2024-07-03
2026-04-30