Compressible Boundary-Layer Predictions at High Reynolds Number Using Hybrid LES/RANS Methods

Jung-Il Choi, Jack R. Edwards, Robert A. Baurle
2009 AIAA Journal  
Simulations of compressible boundary layer flow at three different Reynolds numbers (Re δ = 5.59×10 4 , 1.78×10 5 , and 1.58×10 6 ) are performed using a hybrid large-eddy/Reynoldsaveraged Navier-Stokes method. Variations in the recycling/rescaling method, the higherorder extension, the choice of primitive variables, the RANS/LES transition parameters, and the mesh resolution are considered in order to assess the model. The results indicate that the present model can provide good predictions of
more » ... the mean flow properties and second-moment statistics of the boundary layers considered. Normalized Reynolds stresses in the outer layer are found to be independent of Reynolds number, similar to incompressible turbulent boundary layers.
doi:10.2514/1.41598 fatcat:og7yht2oovf7bazsqts34qb4fa