Experimental quasi-1D capillary-wave turbulence

Guillaume Ricard

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 observation of unidirectional capillary-wave turbulence on the surface of a fluid in a canal. We show experimentally that high-order (5-wave) resonant interactions are the dominant process generating such quasi 1D capillary wave turbulence. We show that the wave spectrum is compatible with the corresponding dimensional analysis prediction. Quasi 1D wave turbulence could be thus highlighted in other fields of wave turbulence