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Titel |
Searching for chaotic deterministic features in laboratory water surface waves |
VerfasserIn |
M. Joelson, Th. Wit, Ph. Dussouillez, A. Ramamonjiarisoa |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1023-5809
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Digitales Dokument |
URL |
Erschienen |
In: Nonlinear Processes in Geophysics ; 7, no. 1/2 ; Nr. 7, no. 1/2, S.37-48 |
Datensatznummer |
250004242
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Publikation (Nr.) |
copernicus.org/npg-7-37-2000.pdf |
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Zusammenfassung |
The dynamic evolution of laboratory water
surface waves has been studied within the framework of dynamical systems with
the aim to identify stochastic or deterministic nonlinear features. Three
different regimes are considered: pure wind waves, pure mechanical waves and
mixed (wind and mechanical) waves. These three regimes show different dynamics.
The results on wind waves do not clearly support the recently proposed idea that
a deterministic Stokes-like component dominate the evolution of such waves; they
are more appropriately described by a similarity-like approach that includes a
random character. Cubic resonant interactions are clearly identified in pure
mechanical waves using tricoherence functions. However, detailed aspects of the
interactions do not fully agree with existing theoretical models. Finally, a
deterministic motion is observed in mixed waves, which therefore are best
described by a low dimensional nonlinear deterministic process. |
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