Zones and Levels
 

Hello,

I've run into an OpenFOAM model that contains Zones and Levels - something I hadn't seen before.

I have a few questions regarding this model:

1) Can anybody explain the meaning of the files cellLevel, cellZones, faceZones, pointLevel, and pointZones in the polyMesh directory?

2) How about cellLevel, cellToRegion, and pointLevel files in the constant directory?

3) When looking at the results directory - e.g., 100/ - I noticed that there were no results files there, such as T, U, p, etc., but there were subdirectories with results there. Can anybody comment on how this is organized?

Thanks.