BATTISTI, Beatrice; BRACCO, Giovanni; BERGMANN, Michel

Métadonnées

Licence d’utilisation du document

BATTISTI, Beatrice
Modeling Enablers for Multi-PHysics and InteractionS [MEMPHIS]
Politecnico di Torino = Polytechnic of Turin [Polito]

BRACCO, Giovanni
Politecnico di Torino = Polytechnic of Turin [Polito]

BERGMANN, Michel
Institut de Mathématiques de Bordeaux [IMB]
Modeling Enablers for Multi-PHysics and InteractionS [MEMPHIS]

Langue

Document de travail - Pré-publication

Résumé en anglais

The objective of this study is to develop a three-dimensional numerical model for a floating point absorber wave energy converter in the presence of sea waves, considering its interaction with a bi-fluid flow (comprising air and water). The primary aim is to create an efficient computational tool that achieves two key objectives: firstly, reducing the computational time typically associated with high-fidelity Computational Fluid Dynamics (CFD) models, and secondly, curing the lack of accuracy of low-fidelity asymptotic or projection-based reduced-order models in regions subjected to viscous and highly nonlinear effects. To address these objectives, we propose a multi-fidelity model based on domain decomposition. This approach combines a high-fidelity CFD solver, which accurately captures the behavior in viscous and nonlinear regions, with a Reduced Order Model (ROM) based on Proper Orthogonal Decomposition (POD), tailored for weakly nonlinear regions. By integrating these components spatially, we simulate the dynamics of the floating body within a unified framework. This methodology ensures precise predictions of the body’s motion for both in-sample (reproduction) and out-of-sample (prediction) configurations.< Réduire

Mots clés en anglais

Multi-fidelity model

Proper Orthogonal Decomposition

Reduced Order Model

Coupling methodology

Wave energy

URI

https://oskar-bordeaux.fr/handle/20.500.12278/190209

Projet Européen

Accurate Roms for Industrial Applications

Origine

Importé de hal

Unités de recherche

Institut de Mathématiques de Bordeaux (IMB) - UMR 5251