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| Titel |
Interactions of surface envelope solitons with a vertical wall and among each other |
| VerfasserIn |
Alexey Slunyaev, Marco Klein, Gunter F. Clauss |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250140858
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| Publikation (Nr.) |
 EGU/EGU2017-4305.pdf |
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| Zusammenfassung |
| The investigation of dynamics of intense solitary wave groups of collinear surface waves is
performed by means of numerical simulations of the Euler equations and laboratory
experiments. The processes of solitary wave generation, reflection from a wall and collisions
are considered. Steep solitary wave groups with characteristic steepness up to kAcr ≈ 0.3
(where k is the dominant wavenumber, and Acr is the crest amplitude) are concerned. They
approximately restore the structure after all the considered interactions. In the course of the
interaction with the wall and collisions the maximum amplitude of the wave crests is
shown to enhance up to 2.5 times. A standing-wave-like structure occurs in the
vicinity of the wall, with certain locations of nodes and antinodes regardless the
particular phase of the reflecting wave group. A strong asymmetry of the maximal
wave groups due to an anomalous set-up is shown in situations of collisions of
solitons with different frequencies of the carrier. In some situations of head-on
collisions the amplitude of the highest wave is larger than in over-head collisions of
the same solitons. The discovered effects in interactions of intense wave groups
are important in the context of mechanisms and manifestations of oceanic rogue
waves.
A. Slunyaev, M. Klein, G.F. Clauss, Laboratory and numerical study of intense envelope
solitons of water waves: generation, reflection from a wall and collisions. ArXiv: 1612.06168
(2016).
A. Slunyaev, G.F. Clauss, M. Klein, M. Onorato, Simulations and experiments of
short intense envelope solitons of surface water waves. Phys. Fluids 25, 067105
(2013). |
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