Request for Finite Element Analysis mini project ideas

Hey guys and gals, i request you to help me out from this dilemma. I want to do an FEA final year course project.
The thing is, i want to do something interesting in the fluid flow, for eg. airflow across a car etc.
Also, i should tell you that i am not very well versed with the software that we are using(Ansys). Please suggest something which is interesting and manageable at my level of experience with the software.😀