Some Investigations on the Sensitivity of Large Eddy Simulation

  • Pierre Sagaut
  • Thien Hiep Lê
Conference paper
Part of the ERCOFTAC Series book series (ERCO, volume 5)


The sensitivity of the large eddy simulation of transitional shear flows is investigated for the cases of the flow past a backward facing step and the round jet. A strong influence of the following parameters of the simulations is reported: representation of the upstream turbulent flow, subgrid-scale model, subgrid term formulation. Two new formulations of the Mixed Scale Model, which account explicitly for the mesh anisotropy, are proposed. The observed dependencies of the results prove that further work is needed to be able to handle flows in complex industrial geometries on highly anisotropic grids.


Large Eddy Simulation Fine Mesh Strouhal Number Coarse Mesh Separate Shear Layer 
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Copyright information

© Springer Science+Business Media Dordrecht 1997

Authors and Affiliations

  • Pierre Sagaut
    • 1
  • Thien Hiep Lê
    • 1
  1. 1.Aerodynamics DepartmentONERAChâtillonFrance

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