Reply To: Simulating Selective Laser Melting process in Ansys Fluent – UDF issue

[Rob]

If you set material properties in the UDF as fixed values the code may use those if you tell it to. Or you can use the cell values which may make more sense. 

Looking at the code, it is a source term UDF. So, assuming you've hooked up the source term into the fluid volume, have you met the criteria for a heat source or is source=0 ?