A 3D parallel boundary element method on unstructured triangular grids for fully nonlinear wave-body interactions - Institut de Recherche sur les Phenomenes Hors Equilibre Accéder directement au contenu
Article Dans Une Revue Ocean Engineering Année : 2019

A 3D parallel boundary element method on unstructured triangular grids for fully nonlinear wave-body interactions

Résumé

This paper presents the development and validation of a three-dimensional numerical wave tank devoted to studying wave-structure interaction problems. It is based on the fully nonlinear potential flow theory, here solved by a boundary element approach and using unstructured triangular meshes of the domain's boundaries. Time updating is based on a second-order explicit Taylor series expansion. The method is parallelized using the Message Passing Interface (MPI) in order to take advantage of multi-processor systems. For radiation problems, with cylindrical bodies moving in prescribed motion, the free-surface is updated with a fully Lagrangian scheme, and is able to reproduce reference results for nonlinear forces exerted on the moving body. For diffraction problems, semi-Lagrangian time-updating is used, and reproduces nonlinear effects for diffraction on monopiles. Finally, we study the nonlinear wave loads on a fixed semi-submersible structure, thereby illustrating the possibility to apply the proposed numerical model for the design of offshore structures and floaters.
Fichier principal
Vignette du fichier
Dombre_et_al_2019_accepted_preprint.pdf (1.63 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02121232 , version 1 (21-05-2020)

Identifiants

Citer

E. Dombre, J.C. Harris, Michel Benoit, D. Violeau, C. Peyrard. A 3D parallel boundary element method on unstructured triangular grids for fully nonlinear wave-body interactions. Ocean Engineering, 2019, 171, pp.505-518. ⟨10.1016/j.oceaneng.2018.09.044⟩. ⟨hal-02121232⟩
97 Consultations
211 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More