Different Regimes for Water Wave Turbulence

COBELLI, PABLO JAVIER; PRZADKA, ADAM; PETITJEANS, PHILIPPE; LAGUBEAU, GUILLAUME; PAGNEUX, VINCENT; MAUREL, AGNES

PHYSICAL REVIEW LETTERS

AMER PHYSICAL SOC

Lugar: New York; Año: 2011 vol. 107 p. 2145031 - 2145035

0031-9007

We present an experimental study on gravity capillary wave turbulence in water. By using space-time resolved Fourier transform profilometry, the behavior of the wave energy density in the 3D (k-w) space is inspected for various forcing frequency bandwidths and forcing amplitudes. Depending on the bandwidth, the gravity spectral slope is found to be either forcing dependent, as classically observed in laboratory experiments, or forcing independent. In the latter case, the wave spectrum is consistent with the Zakharov-Filonenko cascade predicted within wave turbulence theory.