[Andy_Wang]

Dear foamers,

i got problem with the setting of toposet to create slave cells. I did this because i want to calculate the volume flux with swakExpression, which needs slave cells. My topoSetDict is as follows:

actions
(

    {
        name    A0Cells;
        type    cellSet;
        action  new;
        source  cylinderToCell;
        sourceInfo
        {
            p1 (0 0 0.001);
            p2 (0 0 0.008);
            radius 0.03;
        }
    }

    {
        name    A0Face;
        type    faceSet;
        action  new;
        source  cellToFace;
        sourceInfo
        {
            set    A0Cells;
            option both;
        }
    }

    {
        name    A0SlaveCells;
        type    cellSet;
        action  new;
        source  cylinderToCell;
        sourceInfo
        {
            p1 (0 0 0.001);
            p2 (0 0 0.009);
            radius 0.03;
        }
    }

    {
        name    A0Zone;
        type    faceZoneSet;
        action  new;
        source  setsToFaceZone;
        sourceInfo
        {
            faceSet     A0Face;
            cellSet     A0SlaveCells;
            flip        false;
        }
    }
);

I have searched the forum and found one thread that exactly the same problem presents. But it was a thread of 2012, so i decided to open my own thread. Hope it is ok. And the error report i got when i run interFoam like this:

in file sets/faceZoneSources/setsToFaceZone/setsToFaceZone.C at line 167
    One of owner or neighbour of internal face 524106 should be in cellSet A0SlaveCells to be able to determine orientation.
Face:524106 own:171621 OwnInCellSet:1 nei:171622 NeiInCellSet:1

Could anybody help me please!