I am trying to simulate flow passing around a conical structure in order to find the lift and drag coefficients as well as vortex formation at the wake. The problem is that I think that my boundary conditions are a bit off, I also believe that the force and moments coefficients are probably not accurate.
I would be really grateful if somebody could point me in the right direction, as I watched a few videos, also a tried to follow the tutorials on incompressible external aerodynamics, but the models are very complex and I definitely cannot relate them to my project.
I would start by improving the following aspects of your setup:
Increase the size of the bounding box. Use the proportions suggested in the tutorials for external aerodynamics.
You inlet velocity is positive in the X direction, while I think it should be negative given the orientations.
Adding a force plot, not only the coefficients, should give you more criteria to evaluate the results.
A very important indication of the quality of the results is the convergence of residuals and of the force plots. Please refer to this page for some guidance on this topic:
