Slow drift data of turbulent large-scale structures in axisymmetric co-rotating Taylor--Couette flow

DOI

Here we present data sets from direct numerical simulations of axisymmetric Taylor--Couette flow in the co-rotating regime that reveal a transition tospatio-temporal chaos as the system size increases. Beyond this transition, Taylor rolls suddenly undergo erratic drifts evolving on a very slow time scale.We estimate an effective diffusion coefficient for the drift and compare the dynamics to analogous motions in Rayleigh--Bénard convection and Poiseuilleflow data sets, suggesting that this spontaneous diffusive displacement of large coherent structures is common among different types of wall-boundedturbulent flows.

Identifier
DOI https://doi.org/10.1594/PANGAEA.982617
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.982617
Provenance
Creator Feldmann, Daniel ORCID logo; Avila, Marc ORCID logo
Publisher PANGAEA
Publication Year 2025
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 45 data points
Discipline Earth System Research