I am using a DEFINE_TURB_SCHMIDT macro in my simulation. I wrote the code and successfully compiled it in Fluent, but I am unable to hook it to my simulation. I attempted to follow the instructions in the user's guide ("Hooking DEFINE_TURB_SCHMIDT UDFs"), including a careful selection of turbulence models and selecting the Species Transport model, but I was unsuccessful. In particular, the Viscous Model Dialog Box in my simulation did not have the Prandtl and Schmidt Numbers User-Defined Functions box. See below.
This dialog box differed from the sample dialog box in the user manual. Is there a reason why my dialog box is different? Do I need to select another model? I attached a few more screenshots of my simulation.