Evidence for Forcing-Dependent Steady States in a Turbulent Swirling Flow
TypeArticles dans des revues avec comité de lecture
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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SAINT-MICHEL, Brice; DUBRULLE, Bérengère; MARIÉ, Louis; RAVELET, Florent; DAVIAUD, François (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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