Water wave scattering by dense or sparse arrays of surface-piercing bodies by integral matching method
| Autor: | Gwendoline Arnaud, Kostas Belibassakis, Vincent Rey, Julien Touboul |
|---|---|
| Přispěvatelé: | Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Department of Naval Architecture and Marine Engineering [Athens], Technological Educational Institute of Athens, Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Université de Toulon (UTLN), Department of marine structures School of naval architecture and marine engineering (NATIONAL TECHNICAL UNIVERSITY OF ATHENS), National Technical University of Athens [Athens] (NTUA), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN) |
| Rok vydání: | 2018 |
| Předmět: |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere Physics Surface (mathematics) Discretization Scattering 020101 civil engineering Ocean Engineering Geometry 02 engineering and technology Interference (wave propagation) [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation 01 natural sciences [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] 010305 fluids & plasmas 0201 civil engineering Wavelength Dispersion relation 0103 physical sciences Porosity Porous medium ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Applied Ocean Research Applied Ocean Research, 2018, 75, pp.132-142. ⟨10.1016/j.apor.2018.03.012⟩ Applied Ocean Research, Elsevier, 2018, 75, pp.132-142. ⟨10.1016/j.apor.2018.03.012⟩ |
| ISSN: | 0141-1187 |
| Popis: | International audience; In this work, integral matching method is used for the numerical study of water wave scattering by arrays of surface-piercing structures. Such a method, already used for many years for rectangular breakwaters, is applied to structures of various shapes, including arrays of vertical cylinders, for which the contour of vertical boundaries is discretized into steps. Finite width channels of constant depth are considered, which may also correspond to uneven periodic structures along the transverse direction. Applications to sparse or dense arrays of vertical cylinders are discussed. For sparse cylinders, first order and higher order Bragg resonance are observed in both the incoming wave direction and other directions for the higher frequencies. For dense cylinders, considered as porous media, dispersion relation for the wave within the cylinders arrays is discussed through interference process due to the finite length of the porous medium (or the cylinders array) along the incoming wave direction. It is found that the wavelength slightly depends on the cylinders arrangement at given porosity and specific surface. |
| Databáze: | OpenAIRE |
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