Automatic Hybrid RANS/LES Strategy for Industrial CFD

  • Grégoire PontEmail author
  • Paola Cinnella
  • J. C. Robinet
  • Pierre Brenner
Conference paper
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 130)


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 \(k-\varepsilon \) 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.


Eddy Viscosity Separation Point Numerical Dissipation Reattachment Point Hairpin Vortex 
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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Grégoire Pont
    • 1
    Email author
  • Paola Cinnella
    • 2
  • J. C. Robinet
    • 2
  • Pierre Brenner
    • 3
  1. 1.Dynfluid Laboratory, Airbus Space and DefenseLes MureauxFrance
  2. 2.Dynfluid LaboratoryLes MureauxFrance
  3. 3.Airbus Space and DefenseLes MureauxFrance

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