Reply To: Modifiying governing equations in Ansys Fluent for a case 2 diffusion model

[Rob]

Possible, yes. Easy, very definitely not. You'll probably need to use User Defined Scalars and write the diffusion model but it's not a project I'd even consider as a relatively new user. Ansys staff are also very limited in what advice we can offer, and UDFs are generally beyond where we can help.