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Non-stationary regimes of surface gravity wave turbulence
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Bedard, R., Lukaschuk, S. and Nazarenko, Sergey (2013) Non-stationary regimes of surface gravity wave turbulence. JETP Letters, Volume 97 (Number 8). pp. 459-465. doi:10.1134/S0021364013080055
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Official URL: http://dx.doi.org/10.1134/S0021364013080055
Abstract
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.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science > Mathematics | ||||
| Journal or Publication Title: | JETP Letters | ||||
| Publisher: | MAIK Nauka - Interperiodica | ||||
| ISSN: | 0021-3640 | ||||
| Official Date: | 2013 | ||||
| Dates: |
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| Volume: | Volume 97 | ||||
| Number: | Number 8 | ||||
| Page Range: | pp. 459-465 | ||||
| DOI: | 10.1134/S0021364013080055 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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