Observation of wave turbulence in vibrating plates.
The nonlinear interaction of waves in a driven medium may lead to wave turbulence, a state such that energy is transferred from large to small length scales. Here, wave turbulence is observed in experiments on a vibrating plate. The frequency power spectra of the normal velocity of the plate may be rescaled on a single curve, with power-law behaviors that are incompatible with the weak turbulence theory of Düring et al. [Phys. Rev. Lett. 97, 025503 (2006)10.1103/PhysRevLett.97.025503]. Alternative scenarios are suggested to account for this discrepancy -- in particular the occurrence of wave breaking at high frequencies. Finally, the statistics of velocity increments do not display an intermittent behavior.
Boudaoud
Arezki
A
Laboratoire de Physique Statistique, CNRS/ENS/Paris 6/Paris 7, Paris Cedex 5, France.
Cadot
Olivier
O
Odille
Benoît
B
Touzé
Cyril
C