Rob
Ansys Employee

I don't have any links, most of what we've done was for a specific customer so can't be shared. 

The wave tank part is doable for 3-4 month project assuming you're reasonably proficient with the solver and have a decent computer. Adding the granular part isn't trivial, so I'd be more wary of that. Difficult to say for sure as I don't know your skill level or how much supervisor support you'd get.