[Jack001]

Hi all,

I have a problem when running createPatch to create cyclic boundaries in ext-3.2.

When I run the case in OF-3.0.0 everything is fine. My createPatchDict there looks like

patches
(
    {
        // Name of new patch
        name PER11;

        patchInfo
        {
            type cyclic;
            neighbourPatch PER22;

            transform rotational;
            rotationAxis (0 0 1);
            rotationCentre (0 0 0);
        }

        // How to construct: either from 'patches' or 'set'
        constructFrom patches;

        // If constructFrom = patches : names of patches. Wildcards allowed.
        patches (PER1);

        // If constructFrom = set : name of faceSet
        set f0;
    }

    {
        // Name of new patch
        name PER22;

        patchInfo
        {
            type cyclic;
            neighbourPatch PER11;


            transform rotational;
            rotationAxis (0 0 1);
            rotationCentre (0 0 0);
        }

        // How to construct: either from 'patches' or 'set'
        constructFrom patches;

        // If constructFrom = patches : names of patches. Wildcards allowed.
        patches (PER2);

        // If constructFrom = set : name of faceSet
        set f0;
    }

);

After some searching I found that the following format runs in ext-3.2, however I now get the all annoying face ordering problem.

patchInfo
(
    {
        // Name of new patch
        name PER11;

        // Type of new patch
        dictionary
        {
            type cyclic;
            neighborPatch PER22;
            transform rotational;
            rotationAxis (0 0 1);
            rotationCentre (0 0 0);
            rotationAngle 27.692307692;
        }

        // How to construct: either from 'patches' or 'set'
        constructFrom patches;

        // If constructFrom = patches : names of patches. Wildcards allowed.
        patches (PER1);

        // If constructFrom = set : name of faceSet
        set f0;
    }
    {
        // Name of new patch
        name PER22;

        // Type of new patch
        dictionary
        {
            type cyclic;
            neighborPatch PER11;
            transform rotational;
            rotationAxis (0 0 1);
            rotationCentre (0 0 0);
            rotationAngle 27.692307692;
        }

        // How to construct: either from 'patches' or 'set'
        constructFrom patches;

        // If constructFrom = patches : names of patches. Wildcards allowed.
        patches (PER2);

        // If constructFrom = set : name of faceSet
        set f0;
    }


);

The dictionary setup is a bit different and unless I provide the keyword rotationAngle it won't run which is clearly different from OF-3.0.0!

I need to understand what is different in this version and why I am getting the error

--> FOAM FATAL ERROR: 
face 671 area does not match neighbour 1343 by 124.364% -- possible face ordering problem.
patch:PER11 my area:7.7101e-07 neighbour area:1.79786e-07 matching tolerance:0.001
Mesh face:135814 vertices:4((-0.047228 0.00712133 0.0547229) (-0.0473139 0.00652421 0.0550409) (-0.0462156 0.00621963 0.0550629) (-0.0461318 0.00681568 0.054742))
Neighbour face:136486 vertices:4((-0.0285095 0.00747647 0.0480262) (-0.0283014 0.00742829 0.0480351) (-0.0283067 0.00740811 0.0471949) (-0.0285155 0.00745355 0.0471839))
Other errors also exist, only the largest is reported. Please rerun with cyclic debug flag set for more information.

    From function cyclicPolyPatch::calcTransforms()
    in file meshes/polyMesh/polyPatches/constraint/cyclic/cyclicPolyPatch.C at line 293.

FOAM aborting