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Gravity wave turbulence in wave tanks : space and time statistics
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Lukaschuk, Sergei, Nazarenko, Sergey, McLelland, S. J. (Stuart J.) and Denissenko, Petr (2009) Gravity wave turbulence in wave tanks : space and time statistics. Physical Review Letters, Vol.103 (No.4). Article no. 044501. doi:10.1103/PhysRevLett.103.044501
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.103.044501
Abstract
We present the first simultaneous space-time measurements for gravity wave turbulence in a large
laboratory flume.We found that the slopes of k and ! wave spectra depend on wave intensity. This cannot
be explained by any existing theory considering wave turbulence as the result of either breaking events or
weakly nonlinear wave interactions. Instead, we show that random waves and breaking or coherent
structures appear to coexist: The former show themselves in a quasi-Gaussian core of the probability
density function and in the low-order structure functions, and the latter in the probability density function
tails and the high-order structure functions.
| Item Type: | Journal Article | ||||
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| Subjects: | Q Science > QA Mathematics Q Science > QC Physics T Technology > TC Hydraulic engineering. Ocean engineering |
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| Divisions: | Faculty of Science > Engineering Faculty of Science > Mathematics |
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| Library of Congress Subject Headings (LCSH): | Hydrodynamics, Gravity waves, Flumes -- Models, Fluid mechanics, Turbulence | ||||
| Journal or Publication Title: | Physical Review Letters | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 0031-9007 | ||||
| Official Date: | 24 July 2009 | ||||
| Dates: |
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| Volume: | Vol.103 | ||||
| Number: | No.4 | ||||
| Number of Pages: | 4 | ||||
| Page Range: | Article no. 044501 | ||||
| DOI: | 10.1103/PhysRevLett.103.044501 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), Hull Environmental Research Institute (HERI) |
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