Looked at time 0.0032208 of mi
 

Looked at time 0.0032208 of mixer2D. Time 0 consists of 2 separate disconnected regions so didn't use that one.

When compared to the cell pressure in Paraview looks plausible.

http://www.cfd-online.com/OpenFOAM_D...s/126/5738.png
http://www.cfd-online.com/OpenFOAM_D...s/126/5739.png

My description above was for t
 

My description above was for t=0. To be honest: I didn't look at the later timesteps, because I was using the mesh only as an example for a blockMesh-generated mesh where this occurs. The sample for t=0 looks like this:

http://www.cfd-online.com/OpenFOAM_D...s/126/5756.png

(that's what i described in my original posting)