ZDF file extension - Zone Definition file
What is zdf file? How to open zdf files?
File type specification:
ZDF is a common file that contains only the boundary grid information for each zone. This makes for a smaller file for transporting between machines and also makes access quicker.
Common files use a flexible binary direct access file architecture. This allows grid data for multizone structured grids and their associated boundary condition data to be stored in the same file. It also supports overlapping grids and unstructured grids.
A Zone Definition File (ZDF) is a formatted ascii file from the McDonnell Douglas surface grid generator ZONI3G.