Create Wall Bnd File

This tool creates a file named gridfilename.fvbnd with a boundary type "walls" for all no slip walls, and creates boundary types wall-grid# per grid.

If the dataset is single grid the per grid boundary names are omitted. These boundaries specify the exteriors of each grid where velocity is zero.

When running interactively you are prompted to confirm that velocity magnitude, in whatever form that exists, is currently loaded as the current threshold function prior to calculating the walls. As with Create Exterior Bnd File, this tool only creates a wall boundary file for the current dataset.

This tool can also be accessed with an additional command line switch when doing DataGuideTM processing with the -p option. The command line switch is -create_wall_fvbnd.

When running with the command line option, AcuFieldView expects that the function velocity magnitude [PLOT3D], or at least one of the following user defined functions be present: velocity magnitude, mag(velocity), or velocity. If none of these functions are present a structured boundary file may still be written, but it may not correspond to anything meaningful.

If a dataset's grid(s) are defined in such a way that K=1, for instance, represents the boundary surface of the model geometry, then you can create a function using the Function Formula Specification panel (CFD Calculator) defined as K-1 and load this function into the threshold register. Then use this tool, which will create a structured boundary file consisting of the necessary information to create the geometry surface as a boundary surface. When using the command line argument, boundary files are only created for the last (highest-numbered) dataset in a multi-dataset data restart file.