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TURBULENCE MODEL NUMERICAL ANALYSIS
Grids - 3D Modified Supersonic Square Duct Case
The methodology to create a series of nested 3-D grids is provided.
By default, the provided Fortran program creates 8 grids with hex cells, ranging from total point count of 1,590,169,729 (finest) down
to 1078 (coarsest):
A simple FORTRAN program is used to create the grids. It is available here:
The user can also modify the input.
A somewhat older set of grids can be found here:
Grids - 3D Modified Supersonic Square Duct Case (old).
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Responsible NASA Official:
Ethan Vogel
There are options for outputting different types of grids.
The grids are built in nondimensional units, with full duct width D taken to be 1 unit. Due to use of symmetry boundary
conditions, only one quarter of the duct is computed (y and z ranges are from 0 to 0.5).
The grid is stretched in the two wall-normal directions.
The figure below shows a view of one plane of the finest grid.
The default grids created by this program are the same as those used in AIAA-2021-1552,
https://doi.org/10.2514/6.2021-1552 and
https://doi.org/10.2514/6.2021-1552.c1.
In that paper, only the 4 finest grids were used:
Page Curator:
Clark Pederson
Last Updated: 11/10/2021