de.pangaea.dataset969138 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-04-30T21:09:48Z https://doi.pangaea.de/10.1594/PANGAEA.969138 <gco:CharacterString>Predictability of decay events in transitional wall-bounded flows</gco:CharacterString> 2024-07-03T09:04:55 publication https://doi.org/10.1594/PANGAEA.969138 Morón, Daniel
daniel.moron@zarm.uni-bremen.de
https://orcid.org/0000-0001-7057-0082 information author Vela-Martín, Alberto
alberto.vela.martin@zarm.uni-bremen.de
https://orcid.org/0000-0003-4561-8683 information author Avila, Marc
marc.avila@zarm.uni-bremen.de
https://orcid.org/0000-0001-5988-1090 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital 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. completed Morón, Daniel
daniel.moron@zarm.uni-bremen.de
https://orcid.org/0000-0001-7057-0082 information principalInvestigator direct numerical simulation predictability transient chaos transitiononal regime theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation Binary Object thematicClassification Numerical simulated Binary Object (File Size) physicalMeasurement Numerical simulated Bytes Bytes Figure thematicClassification Numerical simulated Title thematicClassification Numerical simulated File name thematicClassification Numerical simulated Variable thematicClassification Numerical simulated File format thematicClassification Numerical simulated Description thematicClassification Numerical simulated text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.969138?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. Related to <gco:CharacterString>Predictability of decay events in transitional wall-bounded flows</gco:CharacterString> 2024-01-01 publication https://doi.org/10.1088/1742-6596/2753/1/012009 Morón, Daniel
daniel.moron@zarm.uni-bremen.de
https://orcid.org/0000-0001-7057-0082 information author Vela-Martín, Alberto
alberto.vela.martin@zarm.uni-bremen.de
https://orcid.org/0000-0003-4561-8683 information author Avila, Marc
marc.avila@zarm.uni-bremen.de
https://orcid.org/0000-0001-5988-1090 information author documentDigital Journal of Physics: Conference Series 2753 12009