Slow drift data of turbulent large-scale structures in axisymmetric co-rotating Taylor–Couette flow
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| Autori principali: | , |
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2025
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| _version_ | 1867172347188871168 |
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| author | Feldmann, Daniel Avila, Marc |
| author_facet | Feldmann, Daniel Avila, Marc |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_974809 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Slow drift data of turbulent large-scale structures in axisymmetric co-rotating Taylor–Couette flow Feldmann, Daniel Avila, Marc Bénard convection; Binary Object; Binary Object (File Size); Description; Figure; File format; Numerical simulated; Plumes/thermals; Rotating flows; Taylor–Couette flow; Title 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. |
| title | Slow drift data of turbulent large-scale structures in axisymmetric co-rotating Taylor–Couette flow |
| topic | Bénard convection; Binary Object; Binary Object (File Size); Description; Figure; File format; Numerical simulated; Plumes/thermals; Rotating flows; Taylor–Couette flow; Title |
| url | https://doi.org/10.1594/PANGAEA.974809 |