- Mapdl.vfopt(opt='', filename='', ext='', dir_='', filetype='', fileformat='', **kwargs)¶
Specifies options for the view factor file and calculates view factors.
APDL Command: VFOPT
View factor option:
NEW - Calculate view factors and write them to a file.
- OFF - Do not recalculate view factors it they already exist in the database,
otherwise calculate compute them. This option is the default behavior.
- READ - Read view factors from a binary file. For subsequent SOLVE commands, switch to
the default option (OFF).
NONE - Do not write view factors to a file.
File name for view factor matrix. Default = Jobname.
Filename extension for view factor matrix. Default = .vf.
Directory path for view factor matrix. If you do not specify a directory path, it will default to your working directory.
View factor file type:
BINA - Binary (default).
ASCI - ASCII.
Format for the specified Filetype:
Binary files (Filetype = BINA): - 0
No compression. (View factor file size may be very large.) - 1
The VFOPT command allows you to deactivate the view factor computation (Opt = OFF) if the view factors already exist in the database. The default behavior is OFF upon encountering the second and subsequent SOLVE commands in the solution processor.
When Opt = READ, only a previously calculated view factor binary file is valid.
For 3-D analyses, two options are available for calculating view factors when running Distributed ANSYS:
Issue a SOLVE command – View factors are calculated in parallel mode if no view factors were previously calculated.
Issue a VFOPT,NEW command – View factors are calculated in serial mode.
For 2-D analyses, view factors are calculated in serial mode.