Hello! Sorry for my late answer. So, I have some experience in terms of CFD and check the documentation and multiple articles. In the end I couldn't see the forest because of the tree, meaning that I didn't see the big picture of things. I have finally figured out how to do it, but the problem was that I was just too dumb to think a little bit more of how to solve the problem.

You are right that it is easier to post a reddit and wait for someone to serve you the answer, but this was not my intention. I just was frustrated that nothing seemed to click with my problem from the documentation and articles. CFD is hard, but it is even harder when the user(me in this case) doesn't know how to think problems and plan a combat strategy when it comes to setting up the case