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arXiv · 2110.01448

Experimental quasi-1D capillary-wave turbulence

Guillaume Ricard·Eric Falcon
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Abstract

Wave turbulence in quasi-1D geometry is usually not investigated experimentally since low-order resonant wave interactions are theoretically prohibited. Here, we report on the first observation of unidirectional capillary-wave turbulence on the surface of a fluid in a canal. We also show that five-wave interactions are the lowest-order resonant process subsisting at small scales, and are thus probably the one generating such quasi-1D capillary wave turbulence. We show that the wave spectrum is compatible with the corresponding dimensional analysis prediction. The main assumptions of weak turbulence theory are also verified experimentally. Quasi-1D wave turbulence could be thus highlighted in other fields of wave turbulence.

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Guillaume Ricard, Eric Falcon. 2021-10-01. Experimental quasi-1D capillary-wave turbulence. https://doi.org/10.1209/0295-5075%2Fac2751

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