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Stochastic fluid structure interaction of a flat plate facing a uniform flow

Abstract : An experiment of a flat rectangular plate facing a uniform flow at Re=264000 shows the importance on the base pressure loading of the asymmetric static modes of the turbulent wake. The plate is free to rotate around its small symmetry axis. For plates with aspect ratio <6, the angular position exhibits strong random discontinuities between steady states of large non zero angles. The steady states have long time durations, more than one order of magnitude larger than the convective timescale. The discontinuities, comparable to violent and unexpected events are due to strong fluid forces associated with the drastic global change of the three dimensional wake, mainly the switching between static asymmetric modes.
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Submitted on : Friday, March 18, 2016 - 10:56:01 AM
Last modification on : Wednesday, May 11, 2022 - 3:14:03 PM
Long-term archiving on: : Monday, June 20, 2016 - 1:08:15 AM


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  • HAL Id : hal-01290450, version 1


Olivier Cadot. Stochastic fluid structure interaction of a flat plate facing a uniform flow. 3rd International Conference on Violent Flows 2016, Mar 2016, Osaka, Japan. ⟨hal-01290450⟩



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