| Téléchargement | - Voir la version finale : Shallow water wave correction in the OEB (multichromatic waves) (PDF, 25.2 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.4224/19541695 |
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| Auteur | Rechercher : Zaman, Hasanat1; Rechercher : Peng, Heather; Rechercher : Baddour, Emile1; Rechercher : McKay, Shane1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut des technologies océaniques du CNRC
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| Format | Texte, Rapport technique |
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| Description physique | 193 p. |
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| Sujet | JONSWAP; TMA spectrums; second order spurious waves; code (LWAVE) |
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| Résumé | Accurate generation of the primary waves and the reproduction of the group-induced second-order low and high frequency waves have been considered essential for physical model test in the laboratory. In the laboratory when multi-chromatic primary waves are generated the required bounded waves will be generated naturally at the difference frequencies. In addition to that several unwanted free waves are also generated. The free waves, having the same frequencies of the bounded waves are reproduced due to mismatch of the boundary conditions at the wave paddle. The other two types of free waves are due to the wave paddle displacement and the local disturbances. We carried out physical experiments to identify the second order spurious waves in shallow water in the Offshore Engineering Basin (OEB) at the Institute for Ocean Technology (IOT) of National Research Council (NRC) Canada. In the basin water depths in the range of 0.4m to 0.6m are used for the experiments. The peak wave periods also have varied from 1.133s to 2.145s. In this experiment JONSWAP and TMA spectrums are separately used. The drive signals of the wave-makers are generated using first-order and second-order wave generation techniques. Total 14 wave probes are used to capture the data in the wave tank. A NRC-IOT code (LWAVE) is used to isolate the primary waves, the bounded waves and the unwanted free waves from the measured data at each wave probe. The measured data are analyzed in this paper to illustrate the differences in the waves generated by two different generation techniques. |
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| Date de publication | 2011-03 |
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| Série | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 19541695 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 89de36f6-e710-4c67-a46c-1fcb63198598 |
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| Enregistrement créé | 2012-02-21 |
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| Enregistrement modifié | 2020-05-27 |
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