Evidence for Forcing-Dependent Steady States in a Turbulent Swirling Flow
Article dans une revue avec comité de lecture
Auteur
SAINT-MICHEL, BriceDUBRULLE, BérengèreMARIÉ, LouisDAVIAUD, François 
RAVELET, FlorentRésumé
We study the influence on steady turbulent states of the forcing in a von Karman flow, at constant impeller speed, or at constant torque. We find that the different forcing conditions change the nature of the stability of the steady states and reveal dynamical regimes that bear similarities to low-dimensional systems. We suggest that this forcing dependence may be applicable to other turbulent systems.
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Article dans une revue avec comité de lecture; ; ; ;RAVELET, Florent (Institute of Physics: Open Access Journals, 2014)
We present a detailed study of a global bifurcation occuring in a turbulent von Kármán swirling flow. In this system, the statistically steady states progressively display hysteretic behaviour when the Reynolds number is ...
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Article dans une revue avec comité de lecture; ; ;RAVELET, Florent (American Physical Society, 2012)
We provide experimental and numerical evidence of in-blades vortices in the von Karman swirling flow. We estimate the associated kinematic α-effect tensor and show that it is compatible with recent models of the von Karman ...
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Article dans une revue avec comité de lecture;PEREIRA, Michaël; RAVELET, Florent; ; ; ; BAKIR, Farid (EDP Sciences, 2021)
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