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

Abstract : 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 \textcolor{Black}{finite} element/\textcolor{Black}{finite} volume formulation on unstructured grids. Parallel performances are analysed. The behavior of a VMS-LES model with different subgrid scale models is investigated for the flow past a circular cylinder at Reynolds number {\it 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 {\it Re} = 140000.
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https://hal.inria.fr/inria-00381570
Contributor : Alain Dervieux <>
Submitted on : Tuesday, May 5, 2009 - 7:09:23 PM
Last modification on : Tuesday, February 26, 2019 - 10:55:13 AM
Long-term archiving on: : Thursday, June 10, 2010 - 10:47:41 PM

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Hilde Ouvrard, Bruno Koobus, Maria Vittoria Salvetti, Simone Camarri, Stephen Wornom, et al.. Parallel Simulation of Complex Unsteady Flows with Variational Multiscale LES and Hybrid RANS/LES. [Research Report] RR-6917, INRIA. 2009, pp.17. ⟨inria-00381570⟩

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