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Hybrid Simulation of High-Reynolds Number Flows Relying on a Variational Multiscale Model

  • Emmanuelle ItamEmail author
  • Stephen Wornom
  • Bruno Koobus
  • Alain Dervieux
Conference paper
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 137)

Abstract

We are interested in the study and improvement of the LES component in hybrid RANS-LES formulations. These models are not designed for blunt-body flows with laminar boundary layers, but it is interesting to examine how they behave in that case. A DDES model is compared with a dynamic Variational multi-scale (DVMS) LES model for two subcritical flows past a cylinder. We then propose a hybridation restricting to DVMS in LES regions. The performances of the different options are compared for subcritical flows and for a flow around a tandem cylinder.

Notes

Acknowledgements

This work has been supported by French National Research Agency (ANR) through project MAIDESC n\(^o\) ANR-13-MONU-0010. HPC resources from GENCI-[CINES] (Grant 2010-x2010026386 and 2010-c2009025067) are also gratefully acknowledged.

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Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  • Emmanuelle Itam
    • 1
    Email author
  • Stephen Wornom
    • 2
  • Bruno Koobus
    • 3
  • Alain Dervieux
    • 4
  1. 1.Institut Montpelliérain Alexander Grothendieck (IMAG)Université de MontpellierMontpellierFrance
  2. 2.LEMMASophia-AntipolisFrance
  3. 3.IMAG, Université de MontpellierMontpellierFrance
  4. 4.LEMMA and INRIASophia-AntipolisFrance

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