Variational Multiscale LES and Hybrid RANS/LES Parallel Simulation of Complex Unsteady Flows

Hilde Ouvrard; Bruno Koobus; Maria-Vittoria Salvetti; Simone Camarri; Alain Dervieux

doi:10.1007/978-3-540-92859-1_41

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Variational Multiscale LES and Hybrid RANS/LES Parallel Simulation of Complex Unsteady Flows

Hilde Ouvrard, Bruno Koobus, Maria-Vittoria Salvetti, Simone Camarri et Alain Dervieux

High Performance Computing for Computational Science - VECPAR 2008, Vol.5336, pp.465-478

Lecture Notes in Computer Science

VECPAR 2008 - 8th International Meeting High Performance Computing for Computational Science (Toulouse, France, 2008)

2008

DOI: https://doi.org/10.1007/978-3-540-92859-1_41

Résumé

Bluff-body flows

variational multiscale LES

hybrid RANS/ LES approach

parallel simulation

We study a new hybrid RANS/Variational Multiscale LES (VMS-LES) model for bluff body flows. The simulations have been carried out using a parallelized solver, based on a mixed element/volume formulation on unstructured grids. First, the behavior of a VMS-LES model with different subgrid scale models is investigated for the flow past a circular cylinder at Reynolds number Re =3900. Second, a new strategy for blending RANS and LES methods in a hybrid model is described and applied to the simulation of the flow around a circular cylinder at Re = 140000.

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Détails

Titre: Variational Multiscale LES and Hybrid RANS/LES Parallel Simulation of Complex Unsteady Flows
Créateurs - sans rôle: Hilde Ouvrard - Université de Montpellier, Institut Montpelliérain Alexander Grothendieck - IMAG
Bruno Koobus - Université de Montpellier, Institut Montpelliérain Alexander Grothendieck - IMAG
Maria-Vittoria Salvetti - University of Pisa
Simone Camarri - University of Pisa
Alain Dervieux - Institut national de recherche en sciences et technologies du numérique
Contributeurs - sans rôle: José M. Laginha M. Palma and Patrick R. Amestoy and Michel Daydé and Marta Mattoso and João Correia Lopes
Détails de publication: High Performance Computing for Computational Science - VECPAR 2008, Vol.5336, pp.465-478
Colloque: VECPAR 2008 - 8th International Meeting High Performance Computing for Computational Science (Toulouse, France, 2008)
Publications en série: Lecture Notes in Computer Science
Identifiants: 9940860009311
Unité académique: Institut Montpelliérain Alexander Grothendieck - IMAG
Langue: English
Type de ressource: Conference proceeding
Champs locaux: hal-00821099