[zephyrus17]

I know it's important to do a sensitivity check with grid refinement or turbulence model, but which do I do first? Should I:

1) Stick to a turbulence model first, then refine the mesh, then compare each turbulence model suitable at that mesh setting?

2) Or refine the mesh individually for each turbulence model chosen, then compare them?

I've read the Wiki on Accurate results and "Why won't it converge", this is mostly more of a theoretical methodology-based question