openfoam/tutorials/mesh/createPatch/TJunctionSwitching_createPatch/system/blockMeshDict

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  v2406                                 |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

//           outlet1
//             +-+
//             | |
//             | |
//             | |
//             | |
// +-----------+-+
// |inlet      | |
// +-----------+-+
//             | |
//             | |
//             | |
//             | |
//             +-+
//           outlet2

scale   1;

vertices
(
    (0.19 -0.02 0)  //4=0
    (0.23 -0.02 0)  //5=1
    (0.23  0.02 0)  //6=2
    (0.19  0.02 0)  //7=3

    (0.19 -0.02 0.01)   //20=4
    (0.23 -0.02 0.01)   //21=5
    (0.23  0.02 0.01)   //22=6
    (0.19  0.02 0.01)   //23=7
);

blocks
(
    // central block
    hex (0 1 2 3 4 5 6 7) central (12 12 1) simpleGrading (1 1 1)
);

edges
(
);

boundary
(
    central_walls
    {
        type wall;
        faces
        (
            // Central block
            (1 2 6 5)
        );
    }

    // Connecting to inlet
    central_inlet
    {
        type            wall;
        faces
        (
            (0 4 7 3)
        );
    }

    // Connecting to bottom
    central_bottom
    {
        type            wall;
        faces
        (
            (0 1 5 4)
        );
    }

    // Connecting to top
    central_top
    {
        type            wall;
        faces
        (
            (2 3 7 6)
        );
    }
);


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