Langley Research Center Turbulence Modeling Resource

 

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2D Mixing Layer Validation Case

EASMko2003-S Model Results
 

Link to EASMko2003-S equations

Note that thorough grid studies were not performed for validation cases such as this one. Some effort was made to ensure reasonable grid resolutions, but there may still be small noticeable discretization errors. Therefore, these validation results shown should be considered representative, but not "truth."

EASMko2003-S results are shown for CFL3D on the second-finest grid (369x369, 89x161, 121x161). CFL3D used freestream turbulence intensity=0.064% and freestream turbulent viscosity (relative to laminar)=0.009 (additional details can be found in the CFL3D User's Manual, Appendix H). Please read note 5 on Notes on running CFD page. The y value is normalized by the vorticity thickness (from experiment), the U velocity is normalized by the lower-stream U velocity as well as the change in the U velocity between lower and upper streams. The specific turbulent shear stress is normalized by the square of the change in U velocity. Note that these are compressible code results at "essentially incompressible" conditions of M=0.121108. There may be a very small influence of compressibility. The data files are given here: mixinglayer_cfl3d_u_easmko.dat, mixinglayer_cfl3d_uv_easmko.dat. (Note: some of the profiles have been interpolated using Tecplot software onto pre-set points, that may or may not correspond to the actual grid points or grid cells used in the computation.)

Note that this model is currently assigned MRR Level 1 for the purposes of this website. This is because at this time the TMBWG has results for this model from only one code. The results on this page are therefore not necessarily reliable until additional independent code(s) can be used to verify the model implementation.

Jump to: SA Results,  SSTm Results,  SST-Vm Results,  SSG/LRR-RSM-w2012 Results,  Wilcox2006-klim-m Results,  K-kL-MEAH2015m Results

Return to: Mixing Layer Validation Intro Page

Return to: Turbulence Modeling Resource Home Page

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Last Updated: 03/24/2021