Experimental study of the inverse cascade in gravity wave turbulence
arXiv:1109.4044 · doi:10.1209/0295-5075/96/34004
Abstract
We perform experiments to study the inverse cascade regime of gravity wave turbulence on the surface of a fluid. Surface waves are forced at an intermediate scale corresponding to the gravity-capillary wavelength. In response to this forcing, waves at larger scales are observed. The spectrum of their amplitudes exhibits a frequency-power law at high enough forcing. Both observations are ascribed to the upscale wave action transfers of gravity wave turbulence. The spectrum exponent is close to the value predicted by the weak turbulence theory. The spectrum amplitude is found to scale linearly with the mean injected power. We measure also the distributions of the injected power fluctuations in the presence of upscale (inverse) transfers or in the presence of a downscale (direct) cascade in gravity wave turbulence.
in press in EPL (2011)
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Cited by in corpus (10)
- Experiments in Surface Gravity-Capillary Wave Turbulence
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- Inverse cascade of gravity waves in the presence of condensate: numerical simulation
- Saturation of the inverse cascade in surface gravity wave turbulence
- Wave turbulence on the surface of a fluid in a high-gravity environment
- Nonlocal gravity wave turbulence in presence of condensate
- Gravity wave turbulence revealed by horizontal vibrations of the container
- Observation of an Inverse Turbulent-Wave Cascade in a Driven Quantum Gas
- Low frequency spectra of bending wave turbulence