Hi everyone,


When i use a very fine Mesh + interFoam (VOF) + dynamicMesh (rotatingMotion), i have a strange behaviour near the walls (in the rotating zone). Indeed, on the first layers near the wall, i have alpha not equal to 1 (when it should be)... And so the force on the walls is not good.



I tested lot of things (very low CFL, different schemes and numerical parameters) but without success.


With a coarser mesh, there is no problem... and with no rotating too


Do you have an explanation and a trick to avoid that ?

Thanks a lot

Cyrille