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Wave turbulence in vibrating plates: The effect of damping

Abstract : The effect of damping in the wave turbulence regime for thin vibrating plates is studied. An experimental method, allowing measurements of dissipation in the system at all scales, is first introduced. Practical experimental devices for increasing the dissipation are used. The main observable consequence of increasing the damping is a significant modification in the slope of the power spectral density, so that the observed power laws are not in a pure inertial regime. However, the system still displays a turbulent behavior with a cut-off frequency that is determined by the injected power which does not depend on damping. By using the measured damping power-law in numerical simulations, similar conclusions are drawn out.
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Submitted on : Saturday, March 12, 2016 - 11:32:52 AM
Last modification on : Wednesday, May 11, 2022 - 3:14:03 PM
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Thomas Humbert, Olivier Cadot, Gustavo Düring, Christophe Josserand, Rica Sergio, et al.. Wave turbulence in vibrating plates: The effect of damping. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2013, 102 (3), pp.30002. ⟨10.1209/0295-5075/102/30002⟩. ⟨hal-01134801⟩



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