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4 papers · 1 filter
Turbulence and energy dissipation from wave breaking
Jiarong Wu, Stéphane Popinet, Bertrand Chapron +2
Wave breaking is a critical process in the upper ocean: an energy sink for the surface wave field and a source for turbulence in the ocean surface boundary layer. We apply a novel…
Stochastic modelling and diffusion modes for proper orthogonal decomposition models and small-scale flow analysis
Valentin Resseguier, Etienne Mémin, Dominique Heitz +1
We present here a new stochastic modelling in the constitution of fluid flow reduced-order models. This framework introduces a spatially inhomogeneous random field to represent the…
Influence of Reynolds number and forcing type in a turbulent von Kármán flow
Brice Saint-Michel, Bérengère Dubrulle, Louis Marié +2
We present a detailed study of of a global bifurcation occuring in a turbulent von Kármán swirling flow. In this system, the statistically steady states progressively display hyste…
Forcing-dependent stability of steady states in a turbulent swirling flow
Brice Saint-Michel, Bérengère Dubrulle, Florent Ravelet +1
We study the influence of the forcing on the steady turbulent states of a von Kármán swirling flow, at constant impeller speed, or at constant torque. We find that the different fo…