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ROUTE TO CHAOS IN THE FLUIDIC PINBALL

Abstract : The fluidic pinball has been recently proposed as an attractive and effective flow configuration for exploring machine learning fluid flow control. In this contribution, we focus on the route to chaos in this system without actuation, as the Reynolds number is smoothly increased. The route was found to be of the Newhouse-Ruelle-Takens kind, with a secondary pitchfork bifurcation that breaks the symmetry of the mean flow field on the route to quasi-periodicity.
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https://hal-ensta-paris.archives-ouvertes.fr//hal-03195622
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Submitted on : Sunday, April 18, 2021 - 10:54:39 PM
Last modification on : Saturday, May 1, 2021 - 3:47:45 AM
Long-term archiving on: : Monday, July 19, 2021 - 6:03:09 PM

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Nan Deng, Luc Pastur, Marek Morzyński, Bernd Noack. ROUTE TO CHAOS IN THE FLUIDIC PINBALL. ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting, Jul 2018, Montreal, Canada. ⟨10.1115/FEDSM2018-83359⟩. ⟨hal-03195622⟩

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