This works perfectly. I also want to add user-defined functions for the Arrhenius rates as a function of the temperature.
I looked up in the user guide,
MFiX-User_Guide.pdf (29.9 MB) , for tutorials on the same. The tutorials demonstrate how to use UDFs in specific cases, but they don’t provide sufficient details on the structure of the Fortran UDF files themselves. For example, it’s not clear what keywords, subroutine templates, etc., are required when creating a new UDF (e.g., for defining Arrhenius rates as a function of temperature). A bit more detailed explanation of how to construct a UDF file from scratch would be very helpful.
Thanks in advance!!