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

bp   0.4;
bn  -0.4;

dp   4;
dn  -4;
dl  10;

nb  15;
nd  30;
nl  20;

gd   20;
gl   1;

geometry
{
    sphere
    {
        type searchableSphere;
        centre (0 0 0);
        radius 0.5;
    }
}

convertToMeters 1;

vertices
(

    project ($bn $bn $bn) (sphere)
    project ($bp $bn $bn) (sphere)
    project ($bn $bp $bn) (sphere)
    project ($bp $bp $bn) (sphere)

    project ($bn $bn $bp) (sphere)
    project ($bp $bn $bp) (sphere)
    project ($bn $bp $bp) (sphere)
    project ($bp $bp $bp) (sphere)

    ($dn $dn $dn)
    ($dp $dn $dn)
    ($dn $dp $dn)
    ($dp $dp $dn)

    ($dn $dn $dp)
    ($dp $dn $dp)
    ($dn $dp $dp)
    ($dp $dp $dp)

    ($dl $dn $dn)
    ($dl $dp $dn)
    ($dl $dn $dp)
    ($dl $dp $dp)
);

blocks
(
    hex (1 0 8 9 5 4 12 13) ($nb $nd $nb) simpleGrading (1 $gd 1)
    hex (0 2 10 8 4 6 14 12) ($nb $nd $nb) simpleGrading (1 $gd 1)
    hex (2 3 11 10 6 7 15 14) ($nb $nd $nb) simpleGrading (1 $gd 1)
    hex (3 1 9 11 7 5 13 15) ($nb $nd $nb) simpleGrading (1 $gd 1)
    hex (0 1 9 8 2 3 11 10) ($nb $nd $nb) simpleGrading (1 $gd 1)
    hex (5 4 12 13 7 6 14 15) ($nb $nd $nb) simpleGrading (1 $gd 1)
    hex (9 16 17 11 13 18 19 15) ($nl $nb $nb) simpleGrading (1 1 1)

    // Solid region
    hex (0 1 3 2 4 5 7 6) ($nb $nb $nb) simpleGrading (1 1 1)
);

edges
(
    project  0 2  (sphere)
    project  2 3  (sphere)
    project  3 1  (sphere)
    project  1 0  (sphere)
    project  4 6  (sphere)
    project  6 7  (sphere)
    project  7 5  (sphere)
    project  5 4  (sphere)
    project  0 4  (sphere)
    project  2 6  (sphere)
    project  3 7  (sphere)
    project  1 5  (sphere)
);

faces
(
    project (0 2 6 4) sphere
    project (2 3 7 6) sphere
    project (3 1 5 7) sphere
    project (1 0 4 5) sphere
    project (0 1 3 2) sphere
    project (4 5 7 6) sphere
);

boundary
(
    inlet
    {
        type patch;
        faces
        (
            (8 10 14 12)
        );
    }

    walls
    {
        type wall;
        inGroups (externalWall);
        faces
        (
            (8 9 11 10)
            (12 13 15 14)
            (10 11 15 14)
            (11 17 19 15)
            (9 16 17 11)
            (13 18 19 15)
            (8 9 13 12)
            (9 16 18 13)
        );
    }

    outlet
    {
        type patch;
        faces
        (
            (16 17 19 18)
        );
    }
);

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