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A zonal Galerkin-free POD model for incompressible flows

hal.structure.identifierModeling Enablers for Multi-PHysics and InteractionS [MEMPHIS]
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorBERGMANN, Michel
hal.structure.identifierModeling Enablers for Multi-PHysics and InteractionS [MEMPHIS]
dc.contributor.authorFERRERO, Andrea
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
hal.structure.identifierModeling Enablers for Multi-PHysics and InteractionS [MEMPHIS]
dc.contributor.authorIOLLO, Angelo
hal.structure.identifierOptimad engineering [Torino]
dc.contributor.authorLOMBARDI, Edoardo
hal.structure.identifierOptimad engineering [Torino]
hal.structure.identifierPolitecnico di Torino = Polytechnic of Turin [Polito]
dc.contributor.authorSCARDIGLI, Angela
hal.structure.identifierOptimad engineering [Torino]
dc.contributor.authorTELIB, Haysam
dc.date.issued2018-01
dc.identifier.issn0021-9991
dc.description.abstractEnA domain decomposition method which couples a high and a low-fidelity model is proposed to reduce the computational cost of a flow simulation. This approach requires to solve the high-fidelity model in a small portion of the computational domain while the external field is described by a Galerkin-free Proper Orthogonal Decomposition (POD) model. We propose an error indicator to determine the extent of the interior domain and to perform an optimal coupling between the two models. This zonal approach can be used to study multi-body configurations or to perform detailed local analyses in the framework of shape optimisation problems. The efficiency of the method to perform predictive low-cost simulations is investigated for an unsteady flow and for an aerodynamic shape optimisation problem.
dc.language.isoen
dc.publisherElsevier
dc.subject.enPOD
dc.subject.enReduced Order Model
dc.subject.enBoundary conditions
dc.subject.enShape optimisation
dc.subject.enGalerkin-free model
dc.title.enA zonal Galerkin-free POD model for incompressible flows
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jcp.2017.10.001
dc.subject.halInformatique [cs]/Modélisation et simulation
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
bordeaux.journalJournal of Computational Physics
bordeaux.page301 - 325
bordeaux.volume352
bordeaux.peerReviewedoui
hal.identifierhal-01668546
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01668546v1
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