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Published on: February 13, 2018
Gravity wave turbulence in a laboratory flume
Petr Denissenko1, Sergei Lukaschuk, Sergey Nazarenko
1Fluid Dynamics Laboratory, University of Hull, Hull, HU6 7RX, United Kingdom.
Abstract:
We present an experimental study of the statistics of surface gravity wave turbulence in a flume of a horizontal size 12 x 6 m. For a wide range of amplitudes the wave energy spectrum was found to scale as Eomega approximately omega(-nu) in a frequency range of up to one decade. However, nu appears to be nonuniversal: it depends on the wave intensity and ranges from about 6 to 4. We discuss our results in the context of existing theories and argue that at low wave amplitudes the wave statistics is affected by the flume finite size, and at high amplitudes the wave breaking effect dominates.
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