Afficher la notice abrégée

Flexible hydrofoil optimization for the 35th America's Cup with constrained EGO method

hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorSACHER, Matthieu
hal.structure.identifierK-Epsilon
dc.contributor.authorDURAND, Mathieu
hal.structure.identifierMyCFD
dc.contributor.authorBERRINI, Elisa
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorHAUVILLE, Frédéric
hal.structure.identifierAnalysis and Control of Unsteady Models for Engineering Sciences [ACUMES]
dc.contributor.authorDUVIGNEAU, Régis
hal.structure.identifierLaboratoire d'Informatique pour la Mécanique et les Sciences de l'Ingénieur [LIMSI]
dc.contributor.authorLE MAITRE, Olivier
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorASTOLFI, Jacques-André
dc.date.accessioned2021-05-14T09:47:56Z
dc.date.available2021-05-14T09:47:56Z
dc.date.issued2018-06
dc.identifier.issn0029-8018
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/77077
dc.description.abstractEnThis paper investigates the use of constrained surrogate models to solve the multi-design optimization problem of a flexible hy-drofoil. The surrogate-based optimization (EGO) substitutes the complex objective function of the problem by an easily evaluable model, constructed from a limited number of computations at carefully selected design points. Associated with ad-hoc statistical strategies to propose optimum candidates within the estimated feasible domain, EGO enables the resolution of complex optimization problems. In this work, we rely on Gaussian processes (GP) to model the objective function and adopt a probabilistic classification method to treat non-explicit inequality constraints and non-explicit representation of the feasible domain. This procedure is applied to the design of the shape and the elastic characteristics of a hydrofoil equipped with deformable elements providing flexibility to the trailing edge. The optimization concerns the minimization of the hydrofoil drag while ensuring a non-cavitating flow, at selected sailing conditions (boat speed and lifting force). The drag value and cavitation criterion are determined by solving a two-dimensional nonlinear fluid-structure interaction problem, based on a static vortex lattice method with viscous boundary layer equations, for the flow, and a nonlinear elasticity solver for the deformations of the elastic components of the foil. We compare the optimized flexible hydrofoil with a rigid foil geometrically optimized for the same sailing conditions. This comparison highlights the hydrodynamical advantages brought by the flexibility: a reduction of the drag over a large range of boat speeds, less susceptibility to cavitation and a smaller angle of attack tuning range.
dc.language.isoen
dc.publisherElsevier
dc.subject.enConstrained optimization
dc.subject.enGaussian process model
dc.subject.enhydrofoil
dc.subject.encavitation
dc.subject.enfluid-structure interaction
dc.title.enFlexible hydrofoil optimization for the 35th America's Cup with constrained EGO method
dc.typeArticle de revue
dc.identifier.doi10.1016/j.oceaneng.2018.03.047
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des fluides [physics.class-ph]
dc.subject.halMathématiques [math]/Optimisation et contrôle [math.OC]
dc.subject.halMathématiques [math]/Equations aux dérivées partielles [math.AP]
dc.subject.halInformatique [cs]/Analyse numérique [cs.NA]
bordeaux.journalOcean Engineering
bordeaux.page62 - 72
bordeaux.volume157
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-01785595
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01785595v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Ocean%20Engineering&rft.date=2018-06&rft.volume=157&rft.spage=62%20-%2072&rft.epage=62%20-%2072&rft.eissn=0029-8018&rft.issn=0029-8018&rft.au=SACHER,%20Matthieu&DURAND,%20Mathieu&BERRINI,%20Elisa&HAUVILLE,%20Fr%C3%A9d%C3%A9ric&DUVIGNEAU,%20R%C3%A9gis&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée