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Feldmann, Daniel; Avila, Marc (2025): Slow drift data of turbulent large-scale structures in axisymmetric co-rotating Taylor--Couette flow [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.982617 (DOI registration in progress)

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Published: 2025-05-27

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Abstract:
Here we present data sets from direct numerical simulations of axisymmetric Taylor--Couette flow in the co-rotating regime that reveal a transition to
spatio-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 Poiseuille
flow data sets, suggesting that this spontaneous diffusive displacement of large coherent structures is common among different types of wall-bounded
turbulent flows.
Keyword(s):
Bénard convection; Plumes/thermals; Rotating flows; Taylor–Couette flow
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Binary ObjectBinaryFeldmann, DanielNumerical simulated
2Binary Object (File Size)Binary (Size)BytesFeldmann, DanielNumerical simulated
3File formatFile formatFeldmann, DanielNumerical simulated
4FigureFigFeldmann, DanielNumerical simulated
5TitleTitleFeldmann, DanielNumerical simulated
6DescriptionDescriptionFeldmann, DanielNumerical simulated
Size:
45 data points

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