/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.1.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 1;

// # this blockMeshDict was generated by m4
define(H1, 0.10) // # enter heights (z coordinates)
define(H2, 0.30)
define(H3, 0.50)

define(x1,0.085) // # enter x coordinates
define(x2,0.115)
define(x3,0.20)

define(y1,0.0175) // # enter y coordinates
define(y2,0.0325)
define(y3,0.05)

define(dx,0.005) // # enter discretization length
define(dy,0.005) // # note: 	the mesh size is calculated using this values
define(dz,0.005) // # 		due to truncation errors the final discretization length may differ

// # relDiff: ($1 - $2) / $3   # decimal places truncated (done by format %.0f)
define(relDiff,`format(`%.0f', esyscmd(echo "scale=2; a=$1-$2; a/$3" | bc))')

define(sR,`eval($1+16)')
define(tR,`eval($1+32)')

// # calculate the mesh size
define(N1x,`relDiff(x1,0,dx)')
define(N2x,`relDiff(x2,x1,dx)')
define(N3x,`relDiff(x3,x2,dx)')

define(N1y,`relDiff(y1,0,dy)')
define(N2y,`relDiff(y2,y1,dy)')
define(N3y,`relDiff(y3,y2,dy)')

define(N1z,`relDiff(H1,0,dz)')
define(N2z,`relDiff(H2,H1,dz)')
define(N3z,`relDiff(H3,H2,dz)')

// # vertex coordinates were generated using pre-defined symbols
vertices
(
    // first row - N1x
    (0  0 0)	// 0
    (x1 0 0)	// 1
    (x2 0 0)	// 2
    (x3 0 0)	// 3
    
    (0  y1 0)	// 4
    (x1 y1 0)	// 5
    (x2 y1 0)	// 6
    (x3 y1 0)	// 7
    
    (0  y2 0)	// 8
    (x1 y2 0)	// 9
    (x2 y2 0)	// 10
    (x3 y2 0)	// 11
    
    (0  y3 0)	// 12
    (x1 y3 0)	// 13
    (x2 y3 0)	// 14
    (x3 y3 0)	// 15
    
    // second row
    (0  0 H1)	// 16
    (x1 0 H1)	// 17
    (x2 0 H1)	// 18
    (x3 0 H1)	// 19
    
    (0  y1 H1)	// 20
    (x1 y1 H1)	// 21
    (x2 y1 H1)	// 22
    (x3 y1 H1)	// 23
    
    (0  y2 H1)	// 24
    (x1 y2 H1)	// 25
    (x2 y2 H1)	// 26
    (x3 y2 H1)	// 27
    
    (0  y3 H1)	// 28
    (x1 y3 H1)	// 29
    (x2 y3 H1)	// 30
    (x3 y3 H1)	// 31
    
    // third row
    (0  0 H2)	// 32
    (x1 0 H2)	// 33
    (x2 0 H2)	// 34
    (x3 0 H2)	// 35
    
    (0  y1 H2)	// 36
    (x1 y1 H2)	// 37
    (x2 y1 H2)	// 38
    (x3 y1 H2)	// 39
    
    (0  y2 H2)	// 40
    (x1 y2 H2)	// 41
    (x2 y2 H2)	// 42
    (x3 y2 H2)	// 43
    
    (0  y3 H2)	// 44
    (x1 y3 H2)	// 45
    (x2 y3 H2)	// 46
    (x3 y3 H2)	// 47
    
    // forth row
    (0  0 H3)	// 48
    (x1 0 H3)	// 49
    (x2 0 H3)	// 50
    (x3 0 H3)	// 51
    
    (0  y1 H3)	// 52
    (x1 y1 H3)	// 53
    (x2 y1 H3)	// 54
    (x3 y1 H3)	// 55
    
    (0  y2 H3)	// 56
    (x1 y2 H3)	// 57
    (x2 y2 H3)	// 58
    (x3 y2 H3)	// 59
    
    (0  y3 H3)	// 60
    (x1 y3 H3)	// 61
    (x2 y3 H3)	// 62
    (x3 y3 H3)	// 63
    
);

// # mesh size was calculated
blocks
(
    // first row
    hex (0 1 5 4 16 17 21 20) (N1x N1y N1z) simpleGrading (1 1 1)	// 1
    hex (1 2 6 5 17 18 22 21) (N2x N1y N1z) simpleGrading (1 1 1)	// 2
    hex (2 3 7 6 18 19 23 22) (N3x N1y N1z) simpleGrading (1 1 1)	// 3
    hex (4 5 9 8 20 21 25 24) (N1x N2y N1z) simpleGrading (1 1 1)	// 4
    hex (5 6 10 9 21 22 26 25) (N2x N2y N1z) simpleGrading (1 1 1)	// 5
    hex (6 7 11 10 22 23 27 26) (N3x N2y N1z) simpleGrading (1 1 1)	// 6
    hex (8 9 13 12 24 25 29 28) (N1x N3y N1z) simpleGrading (1 1 1)	// 7
    hex (9 10 14 13 25 26 30 29) (N2x N3y N1z) simpleGrading (1 1 1)	// 8
    hex (10 11 15 14 26 27 31 30) (N3x N3y N1z) simpleGrading (1 1 1)	// 9
    
    // second row
    hex (sR(0) sR(1) sR(5) sR(4) sR(16) sR(17) sR(21) sR(20)) (N1x N1y N2z) simpleGrading (1 1 1)	// 10
    hex (sR(1) sR(2) sR(6) sR(5) sR(17) sR(18) sR(22) sR(21)) (N2x N1y N2z) simpleGrading (1 1 1)	// 11
    hex (sR(2) sR(3) sR(7) sR(6) sR(18) sR(19) sR(23) sR(22)) (N3x N1y N2z) simpleGrading (1 1 1)	// 12
    hex (sR(4) sR(5) sR(9) sR(8) sR(20) sR(21) sR(25) sR(24)) (N1x N2y N2z) simpleGrading (1 1 1)	// 13
    hex (sR(5) sR(6) sR(10) sR(9) sR(21) sR(22) sR(26) sR(25)) (N2x N2y N2z) simpleGrading (1 1 1)	// 14
    hex (sR(6) sR(7) sR(11) sR(10) sR(22) sR(23) sR(27) sR(26)) (N3x N2y N2z) simpleGrading (1 1 1)	// 15
    hex (sR(8) sR(9) sR(13) sR(12) sR(24) sR(25) sR(29) sR(28)) (N1x N3y N2z) simpleGrading (1 1 1)	// 16
    hex (sR(9) sR(10) sR(14) sR(13) sR(25) sR(26) sR(30) sR(29)) (N2x N3y N2z) simpleGrading (1 1 1)	// 17
    hex (sR(10) sR(11) sR(15) sR(14) sR(26) sR(27) sR(31) sR(30)) (N3x N3y N2z) simpleGrading (1 1 1)	// 18
    
    // third row
    hex (tR(0) tR(1) tR(5) tR(4) tR(16) tR(17) tR(21) tR(20)) (N1x N1y N3z) simpleGrading (1 1 1)	// 19
    hex (tR(1) tR(2) tR(6) tR(5) tR(17) tR(18) tR(22) tR(21)) (N2x N1y N3z) simpleGrading (1 1 1)	// 20
    hex (tR(2) tR(3) tR(7) tR(6) tR(18) tR(19) tR(23) tR(22)) (N3x N1y N3z) simpleGrading (1 1 1)	// 21
    hex (tR(4) tR(5) tR(9) tR(8) tR(20) tR(21) tR(25) tR(24)) (N1x N2y N3z) simpleGrading (1 1 1)	// 22
    hex (tR(5) tR(6) tR(10) tR(9) tR(21) tR(22) tR(26) tR(25)) (N2x N2y N3z) simpleGrading (1 1 1)	// 23
    hex (tR(6) tR(7) tR(11) tR(10) tR(22) tR(23) tR(27) tR(26)) (N3x N2y N3z) simpleGrading (1 1 1)	// 24
    hex (tR(8) tR(9) tR(13) tR(12) tR(24) tR(25) tR(29) tR(28)) (N1x N3y N3z) simpleGrading (1 1 1)	// 25
    hex (tR(9) tR(10) tR(14) tR(13) tR(25) tR(26) tR(30) tR(29)) (N2x N3y N3z) simpleGrading (1 1 1)	// 26
    hex (tR(10) tR(11) tR(15) tR(14) tR(26) tR(27) tR(31) tR(30)) (N3x N3y N3z) simpleGrading (1 1 1)	// 27
    
);

edges
(
);

boundary
(
    inlet
    {
        type patch;
        faces
        (
            (9 10 6 5)
        );
    }
    outlet
    {
        type patch;
        faces
        (
            (tR(16) tR(17) tR(21) tR(20))
            (tR(17) tR(18) tR(22) tR(21))
            (tR(18) tR(19) tR(23) tR(22))
            (tR(20) tR(21) tR(25) tR(24))
            (tR(21) tR(22) tR(26) tR(25))
            (tR(22) tR(23) tR(27) tR(26))
            (tR(24) tR(25) tR(29) tR(28))
            (tR(25) tR(26) tR(30) tR(29))
            (tR(26) tR(27) tR(31) tR(30))
        );
    }
    walls
    {
        type wall;
        faces
        (
            // bottom
            (4 5 1 0)
            (5 6 2 1)
            (6 7 3 2)
            (8 9 5 4)
            
            (10 11 7 6)
            (12 13 9 8)
            (13 14 10 9)
            (14 15 11 10)
            
            // walls - first row
            (0 1 17 16)
            (1 2 18 17)
            (2 3 19 18)
            //
            (3 7 23 19)
            (7 11 27 23)
            (11 15 31 27)
            //
            (15 14 30 31)
            (14 13 29 30)
            (13 12 28 29)
            //
            (12 8 24 28)
            (8 4 20 24)
            (4 0 16 20)
            
            // walls - second row
            (sR(0) sR(1) sR(17) sR(16))
            (sR(1) sR(2) sR(18) sR(17))
            (sR(2) sR(3) sR(19) sR(18))
            //
            (sR(3) sR(7) sR(23) sR(19))
            (sR(7) sR(11) sR(27) sR(23))
            (sR(11) sR(15) sR(31) sR(27))
            //
            (sR(15) sR(14) sR(30) sR(31))
            (sR(14) sR(13) sR(29) sR(30))
            (sR(13) sR(12) sR(28) sR(29))
            //
            (sR(12) sR(8) sR(24) sR(28))
            (sR(8) sR(4) sR(20) sR(24))
            (sR(4) sR(0) sR(16) sR(20))
            
            // walls - third row
            (tR(0) tR(1) tR(17) tR(16))
            (tR(1) tR(2) tR(18) tR(17))
            (tR(2) tR(3) tR(19) tR(18))
            //
            (tR(3) tR(7) tR(23) tR(19))
            (tR(7) tR(11) tR(27) tR(23))
            (tR(11) tR(15) tR(31) tR(27))
            //
            (tR(15) tR(14) tR(30) tR(31))
            (tR(14) tR(13) tR(29) tR(30))
            (tR(13) tR(12) tR(28) tR(29))
            //
            (tR(12) tR(8) tR(24) tR(28))
            (tR(8) tR(4) tR(20) tR(24))
            (tR(4) tR(0) tR(16) tR(20))
        );
    }
);

mergePatchPairs
(
);

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