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

The flow in a rapidly rotating cylinder forced to precess through a nutation angle a\udis investigated numerically, keeping all parameters constant except a, and tuned to a\udtriadic resonance at a = 1º. When increasing a, the flow undergoes a sequence of well-\udcharacterized bifurcations associated with triadic resonance, involving heteroclinic and\udhomoclinic cycles, for a up to about 4º. For larger a, we identify two chaotic regimes.\udIn the first regime, with a between about 4º and 27º, the bulk flow retains remnants of\udthe helical structures associated with the triadic resonance, but there are strong nonlinear\udinteractions between the various azimuthal Fourier components of the flow. For the larger\uda regime, large detuning effects lead to the triadic resonance dynamics being completely\udswamped by boundary layer eruptions. The azimuthal mean flow at large angles results in a\udlarge mean deviation from solid-body rotation and the flow is characterized by strong shear\udat the boundary layers with temporally chaotic eruptions.Postprint (author's final draft

Nonlinear and detuning effects of the nutation angle in precessionally forced rotating cylinder flow