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- W842005999 abstract "Global stability analyses of several separated flow configurations have revealed that the first unstable global mode is 3D and stationary. This indicates that the flow bifurcates from a 2D to a 3D steady flow. To further explore the nature of the bifurcation, a weakly nonlinear analysis is performed. For a periodic system in the transverse direction the amplitude of the 3D global mode is governed by a real Stuart-Landau equation. Its coefficients have been computed for a backward facing step and a smooth backward ramp. We show that the bifurcation is super-critical in the former case and sub-critical in the latter which is further investigated using 3D stationnary computations. Mots clefs : stabilite globale ; bifurcation ; ecoulements decolles" @default.
- W842005999 created "2016-06-24" @default.
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- W842005999 date "2011-08-29" @default.
- W842005999 modified "2023-09-27" @default.
- W842005999 title "Bifurcation stationnaire tridimensionnelle dans des écoulements décollés" @default.
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