Towards practical large-eddy simulations of complex turbulent flows - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2009

Towards practical large-eddy simulations of complex turbulent flows

Résumé

A Shear-Improved Smagorinsky model (SISM) allowing to address non-homogeneous and unsteady flow configurations in a physically-sound manner, without adding significant complication and computation compared to the standard Smagorinsky model, is studied and implemented. Interestingly, the SISM does not call for any adjustable parameter nor ad-hoc damping function. It makes use here of an exponential smoothing algorithm to estimate the ensemble-average of the strain from the temporal evolution of the flow. Application on a flow past a circular cylinder is used as a test of the method.
Fichier principal
Vignette du fichier
etc12-leveque.pdf (204.65 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

ensl-00420589 , version 1 (29-09-2009)

Identifiants

  • HAL Id : ensl-00420589 , version 1

Citer

Jérôme Boudet, Adrien Cahuzac, Pierre Borgnat, Emmanuel Lévêque, Federico Toschi. Towards practical large-eddy simulations of complex turbulent flows. 12th EUROMECH European Turbulence Conference, Sep 2009, Marburg, Germany. ⟨ensl-00420589⟩
175 Consultations
186 Téléchargements

Partager

Gmail Facebook X LinkedIn More