[perao]

Hi all,


I have a topoSetDict with the following instructions:

actions
(
    {
        name    nozzleOutFaceZone;
        type    faceZoneSet;
        action  new;
        source  planeToFaceZone;
        sourceInfo
        {
           include closest;
           point (0.016 0.00606 0);
           normal (1 0 0);
        }
    }
);

By running topoSet, I know that the instructions above are correct as I get in the terminal:

Created faceZoneSet nozzleOutFaceZone
    Applying source planeToFaceZone
    Adding faces which form a plane at (0.016 0.00606 0) with normal (1 0 0)
    Found 1 contiguous regions with 1(150) faces
    Selecting region 0 with 150 faces as the closest to point (0.016 0.00606 0)
     faceZoneSet nozzleOutFaceZone now size 150

However, I get an error when trying to use the newly created faceZone for postProcessing with - e.g. pressure:

solver -postProcess -func "faceZoneAverage(name=nozzleOutFaceZone, p)"

Error:

--> FOAM FATAL ERROR: 
surfaceFieldValue faceZoneAverage(name=nozzleOutFaceZone,field=p): faceZone(nozzleOutFaceZone):
     Unable to process internal faces for volume field p

and, as a consequence, the result for areaAverage(p) is not written into the postProcessing folder.

Any suggestions on how to fix it? It would be also acceptable an alternative answer using a functionObject instead, which I also could use with -postProcessing.

Using v9.

Kind regards,