[msrinath80]

Based on the following blockMeshDict, can someone comment on the type of cells I see near the boundary which joins two patch pairs. Are those funny diagonal lines at the junction real or is paraview playing games with me?

Can someone open the mesh using OpenDx and post the resulting screenshot?

/*---------------------------------------------------------------------------*\
| ========= | |
| \ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \ / O peration | Version: 1.0 |
| \ / A nd | Web: http://www.openfoam.org |
| \/ M anipulation | |
\*---------------------------------------------------------------------------*/

FoamFile
{
version 2.0;
format ascii;

root "";
case "";
instance "";
local "";

class dictionary;
object blockMeshDict;
}

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


convertToMeters 0.1;

vertices
(
// Back plane
(0 0 0)
(1 0 0)
(1 0 0)
(2 0 0)
(0 1 0)
(1 1 0)
(1 1 0)
(2 1 0)

// Front plane
(0 0 0.1)
(1 0 0.1)
(1 0 0.1)
(2 0 0.1)
(0 1 0.1)
(1 1 0.1)
(1 1 0.1)
(2 1 0.1)
);

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

edges
(
);

patches
(
wall bottom
(
(0 1 9 8)
(2 3 11 10)
)
wall bottom
(
(4 12 13 5)
(6 14 15 7)
)
wall left
(
(0 8 12 4)
)
wall right
(
(3 7 15 11)
)

patch leftMerge
(
(1 5 13 9)
)
patch rightMerge
(
(2 10 14 6)
)
);

mergePatchPairs
(
( leftMerge rightMerge )
);


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

Here is the screenshot of the mesh using paraFoam:

http://www.ualberta.ca/~madhavan/paraview.png

[msrinath80]

Pertinent discussions can be found in:

http://www.cfd-online.com/OpenFOAM_D...tml?1172218846