English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Self-organized large-scale flow structures occur in a wide range of turbulentflows. Yet, their emergence, dynamics, and interplay with small-scaleturbulence are not well understood. Here, we investigate such self-organizedturbulent superstructures in three-dimensional turbulent Kolmogorov flow withlarge-scale drag. Through extensive simulations, we uncover theirlow-dimensional dynamics featuring transitions between several stable andmeta-stable large-scale structures as a function of the damping parameter. Themain dissipation mechanism for the turbulent superstructures is the generationof small-scale turbulence, whose local structure depends strongly on thelarge-scale flow. Our results elucidate the generic emergence andlow-dimensional dynamics of large-scale flow structures in fully developedturbulence and reveal a strong coupling of large- and small-scale flowfeatures.

Transitions of turbulent superstructures in generalized Kolmogorov flow