FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}

dz 0.01;

r_inner 0.077;          // inner cup radius (without walls)
dx1 #calc "$r_inner/2";

y 0.105;                // top of cup
height 0.15;            // height of tunnel

L 0.08;                  // half length of tunnel

vertices
(
    (-$dx1 $y 0)
    ($dx1 $y 0)
    ($dx1 $height 0)
    (-$dx1 $height 0)

    (-$dx1 $y $dz)
    ($dx1 $y $dz)
    ($dx1 $height $dz)
    (-$dx1 $height $dz)

    ($L $y 0)
    ($L $height 0)

    ($L $y $dz)
    ($L $height $dz)

    (-$L $y 0)
    (-$L $height 0)

    (-$L $height $dz)
    (-$L $y $dz)

);

blocks
(
    hex (12 0 3 13 15 4 7 14) (5 5 1) simpleGrading (1 1 1)
    hex (0 1 2 3 4 5 6 7) (5 5 1) simpleGrading (1 1 1)
    hex (1 8 9 2 5 10 11 6) (5 5 1) simpleGrading (1 1 1)
);

boundary
(

    inlet
    {
        type wall;
        faces
        (
            (13 12 15 14)
        );
    }

    outlet
    {
        type wall;
        faces
        (
            (8 9 11 10)
        );
    }

    top
    {
        type wall;
        faces
        (
            (7 6 2 3)
            (9 2 6 11)
            (13 3 7 14)
        );
    }

    slip-bottom
    {
        type wall;
        faces
        (
            (15 12 0 4)
        );
    }

    bottom
    {
        type wall;
        faces
        (
            (1 8 10 5)
        );
    }

    interface
    {
        type wall;
        faces
        (
            (4 0 1 5)
        );
    }

);