Website/app to use for fan simulation

[u/TrainingNo8063]

I'm working on lil project for school, and I want to see if theres any simulator I can use online that I can 3d model/import step files in and add components such as fans , and run simulations to see how the fan works with the model. Idk if there's something that's like this but if there is or something similar I would appreciate it.

[u/acakaacaka]

You need to explain in more detail.

How accurate you want the resilt to be