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Chapitre D'ouvrage Année : 2015

Automatic Hybrid RANS/LES Strategy for Industrial CFD

Résumé

An automatic HRL (Hybrid RANS/LES) strategy is investigated in FLUSEPA, a finite-volume solver developed by Airbus Defense and Space. A HRL turbulence model is coupled to a high-order hybrid numerical approximation method. Concerning the turbulence model, the well-known k − ε two equations RANS turbulence model is sensitized to the grid as suggested by Perot and Gadebusch (Phy Fluids 19:1–11, 2007). Concerning the numerical strategy, a third-order accurate upwind approximation method is locally re-centered in vortex dominated regions to achieve non-dissipative fourth-order accuracy. Results are presented for a 2D backward facing step and an an axisymmetry backward facing step, which represent good prototypes of after body flows.
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Dates et versions

hal-02156775 , version 1 (14-06-2019)

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Grégoire Pont, Paola Cinnella, Jean-Christophe Robinet, Pierre Brenner. Automatic Hybrid RANS/LES Strategy for Industrial CFD. Progress in Hybrid RANS-LES Modelling, Springer International Publishing, pp.305-317, 2015, 9783319151410. ⟨10.1007/978-3-319-15141-0_25⟩. ⟨hal-02156775⟩
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