Non-stationary regimes of surface gravity wave turbulence
Bedard, R.; Lukaschuk, S.; Nazarenko, S.
We present experimental results about rising and decaying gravity wave turbulence in a large laboratory flume. We consider the time evolution of the wave energy spectral components in ω- and k-domains and demonstrate that emerging wave turbulence can be characterized by two time scales-a short dynamical scale due to nonlinear wave interactions and a longer kinetic time scale characterizing formation of a stationary wave energy spectrum. In the decay regime we observed the maximum of the wave energy spectrum decreasing in time initially as the power law, ∝t-1/2, as predicted by the weak turbulence theory, and then exponentially due to viscous friction.
Bedard, R., Lukaschuk, S., & Nazarenko, S. (2013). Non-stationary regimes of surface gravity wave turbulence. JETP Letters, 97(8), 459-465. https://doi.org/10.1134/S0021364013080055
|Journal Article Type||Article|
|Online Publication Date||Jun 29, 2013|
|Deposit Date||Nov 13, 2014|
|Peer Reviewed||Peer Reviewed|
|Keywords||surface waves gravity wave turbulence,|
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