OpenFOAM-12/tutorials/modules/incompressibleFluid/rotorDisk/system/snappyHexMeshDict

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  dev
     \\/     M anipulation  |
\*---------------------------------------------------------------------------*/
FoamFile
{
    format      ascii;
    class       dictionary;
    object      snappyHexMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#includeEtc "caseDicts/mesh/generation/snappyHexMeshDict.cfg"

castellatedMesh on;
snap            on;
addLayers       off;

geometry
{
    fixed
    {
        type triSurfaceMesh;
        file "fixed.obj";
        regions
        {
            patch0 { name slipWall; }
            patch1 { name outlet; }
            patch2 { name inlet; }
        }
    }
    rotatingZone
    {
        type triSurfaceMesh;
        file "rotatingZone.obj";
    }
};

castellatedMeshControls
{
    features
    (
      { file "fixed.eMesh"; level 2; }
      { file "rotatingZone.eMesh"; level 4; }
    );

    refinementSurfaces
    {
        fixed
        {
            level       (2 2);
            patchInfo   { type wall; }
            inGroups    (fixed);

            regions
            {
                patch0
                {
                    level (2 2);
                    patchInfo { type wall; }
                }

                patch1
                {
                    level (2 2);
                    patchInfo { type patch; }
                }

                patch2
                {
                    level (2 2);
                    patchInfo { type patch; }
                }
            }
        }
        rotatingZone
        {
            level       (4 4);
            faceZone    rotatingZone;
            cellZone    rotatingZone;
            mode        inside;
        }

    }

    refinementRegions
    {
        fixed
        {
            mode inside;
            levels ((1e-5 1));
        }
        rotatingZone
        {
            mode inside;
            levels ((1e-5 4));
        }
    }

    insidePoint (1e-5 1e-5 1e-5); // Offset from (0 0 0) to avoid
                                     // coinciding with face or edge
}

snapControls
{
    explicitFeatureSnap    true;
}

addLayersControls
{
    layers
    {
    }

    relativeSizes       true; // false, usually with firstLayerThickness
    expansionRatio      1.2;
    finalLayerThickness 0.5;
    minThickness        1e-3;
//  firstLayerThickness 0.01;

//  maxThicknessToMedialRatio 0.6;
}

writeFlags
(
    scalarLevels
    layerSets
    layerFields
);

mergeTolerance 1e-6;

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