|Type of mesh||unstructured mesh (hexahedral elements only)|
The ICEM-CFD/ACRi translator creates the set of formatted input files necessary to run the ACRi CFD software.
The Element or Connectivity file has the extension .cnc and contains
cell information (quadrilaterals in 2D and
hexahedra in 3D).
If there is periodic information in the mesh, a file with the extension
.per will be created to reflect the locations
of the periodic paits in the grid.
If there is local refinement in the mesh, a file with the extension
.blk will be created to include the appropriate
auxiliary connectivity data.
Finally, a Command Input file is generated unconditionally and contains
the data set filenames, as well
as the grid dimension, number of elements, Sub-Region and Boundary defitinition.
The interface generates these ACRi files in the project directory.
Defining Sub-Regions for ACRi LIST
The sub-regions are defined by assigning a name to the cells of the model, in a like manner to defining boundaries above. Enter the boundary face (PAIR) name under string 1 in the "general bnd. cond." menu. Noting that string 1 is limited to five (5) characters, the interface will concatentate the entry ofstring 2to the name in string1. Please note that ACRi accepts only eight(8) characters for the LIST ID names, so the interface will not reflect the entry in string 2 beyond three (3) letters.
Please refer to the General Remarks section for
more details on defining boundary conditions.