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| Titel |
Long-crested and short-crested waves of the three-dimensional fully-nonlinear potential wave fields |
| VerfasserIn |
Elena Sanina, Alexander Babanin, Dmitry Chalikov |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250130304
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| Publikation (Nr.) |
 EGU/EGU2016-10540.pdf |
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| Zusammenfassung |
| Occurrence of freak waves on deep water depends on the short-crestedness of the surface
wave field. There are two contributions with different physics involved in the formation of the
short-crested waves: superposition of linear long-crested waves and lateral modulation, which
is a nonlinear phenomenon. This study investigates three-dimensional fully-nonlinear
potential deep water waves whose initial spectrum is assumed to be of JONSWAP type
with directional distribution given by (cosθ)n, where n is the integer in the range
from 1 to 16. The analysis is based on the results of long-term wave simulations
performed using a numerical scheme based on solving a full three-dimensional potential
equation. Statistics of the short-crested wave fields obtained is compared with the
analysis of linear superposition of sinusoidal waves with identical directional spectra. |
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