Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Validation of a fully nonlinear and dispersive wave model with laboratory non-breaking experiments

Abstract : With the objective of modeling coastal wave dynamics taking into account nonlinear and dispersive effects, a highly accurate nonlinear potential flow model was developed. The model is based on the time evolution of two surface quantities: the free surface position and the free surface velocity potential. A spectral approach is used to resolve vertically the velocity potential in the domain, by decomposing the potential using an orthogonal basis of Cheby-shev polynomials. With this approach, a wide range of relative water depths can be simulated, as demonstrated here with the propagation of nonlinear regular waves over a flat bottom with kh = 2π and 4π (where k is the wave number and h the water depth). The model is then validated by comparing the simulation results to experimental data for four non-breaking wave test cases: (1) nonlinear dynamics of a wave train generated by a piston-type wavemaker in constant water depth, (2) shoaling of a regular wave train on beach with constant slope up to the breaking point, (3) propagation of regular waves over a submerged bar, and (4) propagation of nonlinear irregular waves over a barred beach. The test cases show the ability of the model to reproduce well nonlinear wave interactions and the dynamics of higher-order bound and free harmonics. The simulation results agree well with the experimental data, confirming the model's ability to simulate accurately nonlinear and dispersive effects for non-breaking waves.
Liste complète des métadonnées

Littérature citée [56 références]  Voir  Masquer  Télécharger

https://hal-enpc.archives-ouvertes.fr/hal-01784660
Contributeur : Marissa Yates <>
Soumis le : jeudi 3 mai 2018 - 16:38:18
Dernière modification le : lundi 11 mai 2020 - 12:30:12
Document(s) archivé(s) le : lundi 24 septembre 2018 - 12:56:50

Fichier

CENG-D-15-00266R1_soumis.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Cécile Raoult, Michel Benoit, Marissa Yates. Validation of a fully nonlinear and dispersive wave model with laboratory non-breaking experiments. Coastal Engineering, Elsevier, 2016, 114, pp.194 - 207. ⟨10.1016/j.coastaleng.2016.04.003⟩. ⟨hal-01784660⟩

Partager

Métriques

Consultations de la notice

184

Téléchargements de fichiers

376