FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "system";
    object      refineMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

// Cells to refine; name of 'cellSet'
set             cR2; 

// Type of coordinate system:
// - global : coordinate system same for every cell. Usually aligned with
//   x,y,z axis. Specify in globalCoeffs section below.
// - patchLocal : coordinate system different for every cell. Specify in
//   patchLocalCoeffs section below.
coordinateSystem global;

// Specifies 2 directions by a name and a vector. The normal direction is
// calculated as tan1^tan2
globalCoeffs
{
    tan1            ( 1 0 0 );
    tan2            ( 0 1 0 );
}

patchLocalCoeffs
{
    // Normal direction is face normal of zero'th face of patch
    patch           outside;
    tan1            ( 1 0 0 );
    tan2            ( 0 0 1 );
}

// Specifies the direction to be refined by the name used above
// To refine in the third direction, use the keyword 'normal'
directions      
(
    tan2
    tan1
//    normal
);

// Whether to use hex topology. This will
// - if patchLocal: all cells on selected patch should be hex
// - split all hexes in 2x2x2 through the middle of edges.
useHexTopology  yes; 

// Cut purely geometric (will cut hexes through vertices) or take
// topology into account. Incompatible with 'useHexTopology'
geometricCut    no;

// Write meshes from intermediate steps
writeMesh       no;
