[Dikkeunit]

Dear forum,
I have a problem with mesh quality at the interface between a MRF zone and freestream. It seems like a lot of non-orthogonal cells are present at the interface, but I am not sure why they are there. Does anyone know extra information about improving the interface between the MRF zone and freestream? The MRF zones are made use MRFproperties and snappyhexMesh:

rotatingzonefr
{
level (6 6);
faceZone rotatingzonefr;
cellZone rotatingzonefr;
cellZoneInside inside;
//faceType boundary;
}
If I change the faceType to baffle, the mesh quality is much better, but then I will require to use boundary conditions between the rotating zone and freestream. Maybe someone has experience with something similar? Many thanks.