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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

A new eigenvalue analysis is developed and applied to the circular cylinderlaminar flow configuration to investigate the various mechanisms at play in thenonlinear saturation of perturbations yielding to limit cycles forsupercritical values of the Reynolds number. Unlike the mean-flow analysis,which only accounts for the interaction of the first-harmonic of thetime-periodic flow with its mean-flow, the so-called extended mean-flowanalysis also accounts for its interaction with the second-harmonic. Theresults reveal the existence of two eigenvalues both having a growth rateexactly equal to zero. The high-frequency eigenmode gives better estimations ofthe frequency and spatial structure of the first-harmonic than the marginalmodes obtained with the mean-flow analysis, especially when the Reynolds numberis increased.

Extended mean flow analysis of the circular cylinder flow