On the origin of intermittency in wave turbulence

Details On the origin of intermittency in wave turbulence On the origin of intermittency in wave turbulence

2010-05-04

arxiv.org/abs/1005.0442v1

Physics

Fluid Dynamics

To be published in EPL

Scientific paper

Using standard signal processing tools, we experimentally report that intermittency of wave turbulence on the surface of a fluid occurs even when two typical large-scale coherent structures (gravity wave breakings and bursts of capillary waves on steep gravity waves) are not taken into account. We also show that intermittency depends on the power injected into the waves. The dependence of the power-law exponent of the gravity-wave spectrum on the forcing amplitude cannot be also ascribed to these coherent structures. Statistics of these both events are studied.

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