[Jaimedopoulos]

Hi everyone!

I've a rare problem and I'm not able to solve it.

I'm modelling a train entering a tunnel. The grid is divided in blocks, and the one which moves with the train does it with the layering method.

If inviscid model is chosen, there is no problem in contact regions and results seems to be ok ("seems to be", not sure...jeje).

But if I choose another turbulence model (SST, K-e, etc.) contact regions between the different grid blocks start to do strange things, as you can see in the image (specially in velocity fields).

Has anybody some idea? Thanks in advance!