Need some CFD workstation tips
 

Hi everyone!
I've been tasked by my managament to search for components for our new workstation that will run mostly ansys Mechanical and CFD (fluent, thermal, etc). The budget is about 15-20k USD

Currently I'm thinking about getting an Epyc 7542 system with eight 64 gig sticks of samsung ECC 2933 RAM.
Is there any benefit in getting a dedicated GPU (Tesla, Quadro) for these kinds of simulations? What should I look into while selecting RAM and so on?
I'm kinda new to buying these kinds of systems, what shoud I keep in mind in this case?

That you probably have a limited amount of parallel licenses when working with Ansys products. Find out how many, this will determine what a suitable workstation could look like.

The license hasn't been bought yet and will be configured accordingly.

That is the wrong order to go about this decision.
Are you aware that the annual license costs will be higher than the price of the workstation?
Imagine buying a 64-core workstation, only to realise later that your budget only covers 8 parallel licenses.
Or what if you buy a workstation with 8 fast cores now, but you would have needed 32 cores to get your simulations done fast enough.

With expensive software on a per-core licensing scheme -like Ansys- it has to be the other way round: check how many parallel licenses you need and can afford, then buy the fastest possible hardware to put them to use.