Compressible Large Eddy Simulation Using Unstructured Grid: Supersonic Boundary Layer

  • Gerald Urbin
  • Doyle Knight
Part of the Fluid Mechanics and its Applications book series (FMIA, volume 54)


A Mach 3 adiabatic turbulent boundary layer is studied using Large Eddy Simulation (LES). The filtered compressible Navier-Stokes equations are solved on a three-dimensional unstructured grid of tetrahedral cells. A compressible extension of the method of Lund is developed to generate the inflow conditions. Different tests on subgrid scale model and grid refinements are studied. The friction velocity predicted is accurate within a few percent; profiles of Reynolds shear and normal stresses are in good agreement with experimental data as well. The objective of this preliminary study is to assess the capability of the unstructured compressible LES method.


Large Eddy Simulation Direct Numerical Simulation Turbulent Boundary Layer Friction Velocity Unstructured Grid 
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Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • Gerald Urbin
    • 1
  • Doyle Knight
    • 1
  1. 1.Mechanical and Aerospace EngineeringRutgers UniversityPiscatawayUSA

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