Dispersive and dispersive-like bores in channels with sloping banks
hal.structure.identifier | Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture [IRSTEA] | |
hal.structure.identifier | Université Grenoble Alpes [2016-2019] [UGA [2016-2019]] | |
dc.contributor.author | CHASSAGNE, Rémi | |
hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
dc.contributor.author | FILIPPINI, Andrea Gilberto | |
hal.structure.identifier | Certified Adaptive discRete moDels for robust simulAtions of CoMplex flOws with Moving fronts [CARDAMOM] | |
dc.contributor.author | RICCHIUTO, Mario | |
hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
dc.contributor.author | BONNETON, Philippe | |
dc.date.accessioned | 2024-04-04T03:03:47Z | |
dc.date.available | 2024-04-04T03:03:47Z | |
dc.date.issued | 2018 | |
dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/193099 | |
dc.description.abstract | Dans cet article, une analyse dille la dynamique des ressauts undulaires dans des canaux de section variable est prnt Desrmes Low Froude Number (LFN) et High Froude Number (HFN), sont simulvec un mod Serre-Green-Naghdi et les rltats sont comparux expences de Treske. Nous montrons que, contrairement aux ondes Favre et aux ondes HFN, contrlar desmnismes dispersifs non hydrostatiques, les ondes LFN correspondent phm hydrostatique. Les propris de dispersion des ressauts LFN sont li raction des vagues sur les berges, de la m mani que les edge waves. Un mod thique hydrostatique permettant de dire ces ondes \dispersive-like" est dv comparx observations, confirmant ainsi notre hypoth. | |
dc.description.abstractEn | In this paper, a detailed analysis of undular bore dynamics in channels of variable cross-section is presented. Two undular bore regimes, Low Froude Number (LFN) and High Froude Number (HFN), are simulated with a Serre-Green-Naghdi model, and the results are compared with the experiments by Treske. We show that contrary to Favre waves and HFN bores, whichare controlled by dispersive non-hydrostatic mechanisms, LFN bores correspond to a hydrostatic phenomenon. The dispersive-like properties of the LFN bores is related to wave refraction on the banks in a way similar to that of edge waves in the nearshore. A fully hydrostatic theoretical model allowing to describe these dispersive-like bores is derived and compared to the observations, confirming our claim. | |
dc.description.sponsorship | Tsunamis en Atlantique et MaNche : Définition des Effets par Modélisation - ANR-11-RSNR-0023 | |
dc.language.iso | en | |
dc.subject | Nombre de Froude | |
dc.subject | Analyse asymptotique | |
dc.subject | Modèles Serre-Green-Naghdi | |
dc.subject | Choc dispersifs | |
dc.subject | Ondes longues | |
dc.subject | Effets dispersifs | |
dc.subject.en | Froude number | |
dc.subject.en | Dispersive effects | |
dc.subject.en | Dispersive shocks | |
dc.subject.en | Serre-Green-Naghdi equations | |
dc.subject.en | Asymptotic analysis | |
dc.subject.en | Tidal bores | |
dc.subject.en | Long waves | |
dc.subject.en | Channels | |
dc.title.en | Dispersive and dispersive-like bores in channels with sloping banks | |
dc.type | Rapport | |
dc.subject.hal | Informatique [cs]/Modélisation et simulation | |
dc.subject.hal | Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph] | |
dc.subject.hal | Physique [physics]/Physique [physics]/Géophysique [physics.geo-ph] | |
dc.subject.hal | Physique [physics]/Physique [physics]/Physique Atmosphérique et Océanique [physics.ao-ph] | |
bordeaux.hal.laboratories | Institut de Mathématiques de Bordeaux (IMB) - UMR 5251 | * |
bordeaux.institution | Université de Bordeaux | |
bordeaux.institution | Bordeaux INP | |
bordeaux.institution | CNRS | |
bordeaux.type.institution | Inria Bordeaux Sud-Ouest | |
bordeaux.type.report | rr | |
hal.identifier | hal-01938547 | |
hal.version | 1 | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-01938547v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2018&rft.au=CHASSAGNE,%20R%C3%A9mi&FILIPPINI,%20Andrea%20Gilberto&RICCHIUTO,%20Mario&BONNETON,%20Philippe&rft.genre=unknown |
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