ANSYS Fluent (legacy) supports 2D and 3D grids of all cell types that can be
created in Pointwise. This exporter is used by V17.0 and earlier versions of
Pointwise that is compatible with Gridgen's Fluent exporter.
Unlike ANSYS Fluent that groups boundary conditions by volume conditions, this
exporter groups boundary conditions by which block they belong to when volume
condition is not specified.
In the figure shown below, for example, two boundaries with the BC name
"Outflow" are associated with "Block-A" and "Block-B" respectively. If the
volume condition is left "Unspecified" for these two blocks, that results in
two zones upon export. Likewise, two zones will be created for the three "Wall"
However, one zone will be created for "Outflow" or "Wall" boundary condition
if ANSYS Fluent is used.
ANSYS Fluent (v15) handles unspecified volume conditions
different than ANSYS Fluent.