PimepleFoam vs. PisoFoam
 

Hi all,

I have flows around an airfoil at moderate Reynolds numbers, and I am going to use LES to obtain the flow field.

I would like to hear some comparison, user experience, etc. in terms of PimpleFoam vs. PisoFoam.

Note, I have read previous posts about the similar questions already. My take-away is PimpleFoam is able to have large time steps and seem to be more robust and efficient.

My concern about PimpleFoam is, I think PimpleFoam is not really “transient", I mean the algorithm seeks a steady state for several iterations in one time step. I am not sure what is the impact bu doing this (besides making codes more stable), and does it make sense in physics?

In my case, I do not need a large time step, what matters most is the accuracy of my simulation.

Any inputs are highly appreciated!

Best regards,
Peter