Observation of gravity-capillary wave turbulence

Details Observation of gravity-capillary wave turbulence Observation of gravity-capillary wave turbulence

2006-10-11

arxiv.org/abs/cond-mat/0610297v3

Physical Review Letters 98 (2007) 094503

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevLett.98.094503

We report the observation of the cross-over between gravity and capillary wave turbulence on the surface of mercury. The probability density functions of the turbulent wave height are found to be asymmetric and thus non Gaussian. The surface wave height displays power-law spectra in both regimes. In the capillary region, the exponent is in fair agreement with weak turbulence theory. In the gravity region, it depends on the forcing parameters. This can be related to the finite size of the container. In addition, the scaling of those spectra with the mean energy flux is found in disagreement with weak turbulence theory for both regimes.

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