openfoam/tutorials/mesh/snappyHexMesh/airfoilWithLayers/system/blockMeshDict

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  v2506                                 |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

scale   1;

vertices
(
    (-1 -0.8 -1)
    ( 2 -0.8 -1)
    ( 2 -0.2 -1)
    (-1 -0.2 -1)
    (-1 -0.8  1)
    ( 2 -0.8  1)
    ( 2 -0.2  1)
    (-1 -0.2  1)
);

blocks
(
//    hex (0 1 2 3 4 5 6 7) (15 10 10) simpleGrading (1 1 1)
    hex (0 1 2 3 4 5 6 7) (15 5 10) simpleGrading (1 1 1)
);

edges
();

boundary
(
    airFlow
    {
        type patch;
        faces
        (
            (2 6 5 1)  //outlet
            (0 4 7 3)  //inlet
            (0 3 2 1)  //lowerWall
            (4 5 6 7)  //upperWall
        );
    }

    front
    {
        type symmetryPlane;
        faces
        (
            (3 7 6 2)
        );
    }

    back
    {
        type symmetryPlane;
        faces
        (
            (1 5 4 0)  //back
        );
    }
);


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