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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 ISSN 0021-3640.

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Official URL: http://dx.doi.org/10.1134/S0021364013080055

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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, Engineering and Medicine > Science > Mathematics
Journal or Publication Title: JETP Letters
Publisher: MAIK Nauka - Interperiodica
ISSN: 0021-3640
Official Date: 2013
Dates:
DateEvent
2013Published
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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