[elia_l]

Hi guys,

I'm trying to simulate wiht OpenFOAM 13 Foundation a centrifugal industrial fan working with simple incompressible air. I started with a steadystate simulation with MRF model. I used 3 mesh domains (inletdom (blue), imp (green), outletdom (grey)), connected with NCC interfaces. The "rotating" domain is called "imp". "wall_imp" face group is MRFnoSlip, rotating with "imp" domain and "wall_imp_counterrot" face group should be set as MRFnoSlip, with no absolute velocity (not rotating with "imp" domain). I have no problem regarding convergence, but I can't set properly the rotation of wall group "wall_imp_counterrot". It still keeps rotating with "imp" domain, like "wall_imp". Attatched 0/U and constant/MRFProperties dictionaries and some images to better understand the case.

Thanks in advance.