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2D Zero Pressure Gradient High Mach Number Flat Plate Validation Case
SA Model Results
Link to SA 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."
Above SA results are from four independent CFD codes: CFL3D (NASA LaRC, USA) and FUN3D (NASA LaRC, USA),
JOE (Stanford, USA), and WIND (NASA Glenn, USA).
Both CFL3D and FUN3D used freestream value of the SA turbulence field variable (relative to laminar)=3,
while WIND used a value of 5.
Please read note 5 on Notes on running CFD page.
The codes all used the same 545 x 385 grids, and gave fairly close results.
Differences are due to discretization errors, iterative
convergence differences, boundary condition differences, and/or
possible code-to-code implementation-detail differences.
The right-hand plot is extracted from the location where Retheta=10000.
Note that these are
compressible code results using the standard SA model (no compressibility corrections).
The post-processed data files from CFL3D are given here for reference:
highmach_cfl3d_cf_sa.dat and
highmach_cfl3d_u+_sa.dat.
A typical CFL3D input file is:
ssflat_cfl3d_typical_sa.inp.
A typical FUN3D input file is:
fun3d.nml_typical_sa_m5t1p09.
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Responsible NASA Official:
Ethan Vogel
Page Curator:
Clark Pederson
Last Updated: 03/12/2025