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Return to: Axisymmetric Transonic Bump Validation Intro Page
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Axisymmetric Transonic Bump Validation Case
SA-RC Model Results
Link to SA-RC 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."
The plots compare the SA-RC results from CFL3D and FUN3D with experimental data.
The CFD codes predict the flow separation to occur at x/c = 0.67 and reattachment at x/c = 1.20-1.21
(in experiment these were 0.7 and 1.1, respectively).
Both codes used freestream value of the SA turbulence field variable (relative to laminar)=3.
Please read note 5 on Notes on running CFD page.
These results are from the second-finest grid (721x321).
Both codes yield nearly identical results.
The data files from CFL3D are given here:
axibump_cfl3d_cp_sarc.dat,
axibump_cfl3d_cf_sarc.dat,
axibump_cfl3d_u_sarc.dat,
axibump_cfl3d_uv_sarc.dat.
(Note: 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.)
A typical CFL3D input file is:
axibump_cfl3d_typical_sarc.inp.
A typical FUN3D input file is:
fun3d.nml_typical_sarc_2.
In this case CFL3D
was run on a version of the 3-D grid that was centered around the x-z plane, rather
than on the posted grid that has one plane aligned with the x-z
plane (1 deg. still separated the two planes).
Jump to: SA Results,
SSTm Results,
SST-2003m Results,
SST-RCm Results,
BSLm Results,
SSG/LRR-RSM-w2012 Results,
Wilcox2006-klim-m Results,
K-kL-MEAH2015m Results Return to: Axisymmetric Transonic Bump Validation Intro Page Return to: Turbulence Modeling Resource Home Page
Recent significant updates: Responsible NASA Official:
Ethan Vogel
01/28/2019 - mentioned that CFL3D version of grid is centered about x-z plane
Page Curator:
Clark Pederson
Last Updated: 03/06/2025