how can I read a user-function file?
 

Hi dears
I want to use a user-function in AVL fire. I want to change the laminar flame speed correlation of CFM combustion model. Fire itself has CFM user- function. and I changed laminar flame speed correlation in that .f file.
I add the file in run window, but it can't start the simulation and it says: solver terminated abnormally.
what should I do? how can I read a user-function file?