[Scabbard]

Dear Foamers,

have a really annoying problem concerning cylic boundaries imported from ICEM. When I use the createPatch command. This is what I get after using createPatch utility:

--> FOAM FATAL ERROR: 
face 722 area does not match neighbour by 0.010670375885% -- possible face ordering problem.
patch:TOP my area:0.000172697081473 neighbour area:0.000172678655029 matching tolerance:0.0001
Mesh face:5008786 fc:(-0.910732468388 -0.121136204077 0.57999998165)
Neighbour fc:(-0.91073345224 -0.121136444811 0)
If you are certain your matching is correct you can increase the 'matchTolerance' setting in the patch dictionary in the boundary file.
Rerun with cyclic debug flag set for more information.

    From function cyclicPolyPatch::calcTransforms()
    in file meshes/polyMesh/polyPatches/constraint/cyclic/cyclicPolyPatch.C at line 221.

And the createPatch documents shows as blew

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.0                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      createPatchDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

// Do a synchronisation of coupled points after creation of any patches.
// Note: this does not work with points that are on multiple coupled patches
//       with transformations (i.e. cyclics).
pointSync false;

// Patches to create.
patches
(
    { 
        name cyclic01;
        patchInfo
        {
            type            cyclic;
            neighbourPatch  cyclic02;
            matchTolerance 1e-04;
        }
        constructFrom patches;
        patches (FRONT);
        
    }
    
    { 
        name cyclic02;
        patchInfo
        {
            type            cyclic;
            neighbourPatch  cyclic01;
            matchTolerance 1e-04;
        }
        constructFrom patches;
        patches (BACK);
        
    }
);

Here is my original boundary documents import from icem, using fluent3DMeshtoFoam utility.

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.0                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       polyBoundaryMesh;
    location    "constant/polyMesh";
    object      boundary;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

6
(
    CYLINDER
    {
        type            wall;
        inGroups        1(wall);
        nFaces          8556;
        startFace       4828165;
    }
    SIDE
    {
        type            symmetry;
        inGroups        1(symmetry);
        nFaces          16244;
        startFace       4836721;
    }
    FRONT
    {
        type            patch;
        nFaces          52661;
        startFace       4852965;
    }
    BACK
    {
        type            patch;
        nFaces          52661;
        startFace       4905626;
    }
    INLET
    {
        type            patch;
        nFaces          4247;
        startFace       4958287;
    }
    OUTLET
    {
        type            patch;
        nFaces          4247;
        startFace       4962534;
    }
)

// ************************************************************************* //

How could I solve this problem... I have faced to this error a week and can not solve it...

Thank you so much for your help.

Best wishes,
Scabbard