Rob
Ansys Employee

If you're doing a research project you may want to review the Academic licencing: we distinguish between commercial & research. I also need to point out that Student is for learning, not for PhD project work: read the licence agreement you clicked (probably without reading!). 


Similarly, Student & Commercial/Academic aren't different versions: they're different licences. I have about 6 versions of Fluent and 4 full Ansys installs. 


As an aside, which Ansys forum are you referring to? You've just got 2 threads on here that I can see.