[pc1]

Hi there,
I'm trying to develop a trapezoidal-shaped channel in BlockMesh, consisting of 2 three-sided prism and in between a normal cuboid. In the attached PDF-file you can find a sketch of the geometry.
Below the blockMesh is posted.

My problem is that when I'm trying to define different number of cells in x and in y direction like for example:

blocks
( hex (3 2 2 3 7 6 5 4) (1300 50 10) simpleGrading (1 1 1)
hex (3 9 8 2 7 11 10 6) (1300 50 10) simpleGrading (1 1 1)
hex (8 9 9 8 10 11 15 14) (1300 50 10) simpleGrading (1 1 1))
);

I get the following error:

[...]
Inconsistent number of faces between block pair 0 and 1
From function blockMesh::createMergeList()
in file createMergeList.C at line 196.
FOAM exiting

If I define the mesh as follows:

blocks
( hex (3 2 2 3 7 6 5 4) (100 100 10) simpleGrading (1 1 1)
hex (3 9 8 2 7 11 10 6) (100 100 10) simpleGrading (1 1 1)
hex (8 9 9 8 10 11 15 14) (100 100 10) simpleGrading (1 1 1))
);

everything works fine.
Can anyone tell me how to solve this problem? I don't know what I have to change to get this working.

I'm thankful for any advice.
Regards,
pc1


my BLOCKMESH:

/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 1.5 |
| \\ / A nd | Web: http://www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 1.;

vertices
(
(0 0 0) // 0
(0 40 0) // 1
(0.48 40 0) // 2
(0.48 0 0) // 3
(0 0 0.16) // 4
(0 40 0.16) // 5
(0.48 40 0.16) // 6
(0.48 0 0.16) // 7
(1.72 40 0) // 8
(1.72 0 0) // 9
(1.72 40 0.16) // 10
(1.72 0 0.16) // 11
(2.2 40 0) // 12
(2.2 0 0) // 13
(2.2 40 0.16) // 14
(2.2 0 0.16) // 15
);

blocks
(
hex (3 2 2 3 7 6 5 4) (1 1 1) simpleGrading (1 1 1) // p
hex (3 9 8 2 7 11 10 6) (1 1 1) simpleGrading (1 1 1) //q
hex (8 9 9 8 10 11 15 14) (1 1 1) simpleGrading (1 1 1) // r
);

edges
(
);

patches
(
//left: Prism p

wall xminp
(
(4 5 2 3)
)
patch yminp
(
(3 7 4 3)
)
patch ymaxp
(
(2 5 6 2)
)
patch zminp
(
(3 2 2 3)
)
patch zmaxp
(
(4 7 6 5)
)

// middle: cuboid q

patch yminq
(
(7 11 9 3)
)
patch ymaxq
(
(6 2 8 10)
)
wall zminq
(
(2 3 9 8)
)
patch zmaxq
(
(11 7 6 10)
)

// right: Prism r

wall xmaxr
(
(15 9 8 14)
)
patch yminr
(
(15 11 9 15)
)
patch ymaxr
(
(14 8 10 14)
)
patch zmaxr
(
(15 14 10 11)
)
patch zminr
(
(8 9 9 8)
)


);

mergePatchPairs
(
);

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