/*--------------------------------*- 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      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 1;

//depth     ?;      // Depth of tank (x-direction)
width       40;     // Width of tank (y-direction)
height      30;     // Depth of tank (z-direction)

lowerHeight 5;      // Height to the top of lower chamfer
upperHeight 10;     // Height of upper chamfer

angleLower  45;     // Angle of lower chamfer to the horizontal
angleUpper  45;     // Angle of upper chamfer to the horizontal
moveZ       -10;    // Moving tank in z direction

//xCells    ?;      // Number of cells in the depth
yCells      40;     // Number of cells in the width
zLowCells   6;      // Number of cells in the height of the lower chamfer
zMidCells   16;     // Number of cells in the height between the chamfers
zUpCells    12;     // Number of cells in the height of the upper chamfer

//frontAndBackPatchType ?; // Type of the front and back patch

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

vertices #codeStream
{
    codeInclude
    #{
        #include "pointField.H"
    #};

    code
    #{
        const scalar halfDepth = ($depth)/2.0;
        const scalar halfWidth = ($width)/2.0;

        const scalar yBottom =
            halfWidth - ($lowerHeight)/tan(degToRad($angleLower));
        const scalar yTop =
            halfWidth - ($upperHeight)/tan(degToRad($angleUpper));

        const scalar zMid = $height - $upperHeight;

        pointField points
        ({
            point(-halfDepth, -yBottom,   0),            // pt 0
            point(-halfDepth, -halfWidth, $lowerHeight), // pt 1
            point(-halfDepth, -halfWidth, zMid),         // pt 2
            point(-halfDepth, -yTop,      $height),      // pt 3
        });

        // Move points in z direction
        points += vector(0, 0, $moveZ);

        // Duplicate y points
        points.append(cmptMultiply(points, vector(1, -1, 1)));

        // Duplicate x points
        points.append(cmptMultiply(points, vector(-1, 1, 1)));

        os  << points;
    #};
};

blocks
(
    hex (0 8 12 4 1 9 13 5)  ($xCells $yCells $zLowCells) simpleGrading (1 1 1)
    hex (1 9 13 5 2 10 14 6) ($xCells $yCells $zMidCells) simpleGrading (1 1 1)
    hex (2 10 14 6 3 11 15 7) ($xCells $yCells $zUpCells) simpleGrading (1 1 1)
);

boundary
(
    walls
    {
        type wall;
        faces
        (
            (0 4 12 8)
            (4 5 13 12)
            (5 6 14 13)
            (6 7 15 14)
            (7 3 11 15)
            (3 2 10 11)
            (2 1 9 10)
            (1 0 8 9)
        );
    }

    front
    {
        type $frontAndBackPatchType;
        faces
        (
            (8 12 13 9)
            (9 13 14 10)
            (10 14 15 11)
        );
    }

    back
    {
        type $frontAndBackPatchType;
        faces
        (
            (0 1 5 4)
            (1 2 6 5)
            (2 3 7 6)
        );
    }
);

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