Wedge shape meshing problem!
 

Hi everyone. I am trying to build a wedged-shape(or you can say pyramid-shape) geometry like the one in Table 5.1 in the Manual. However I couldn't achieve this. I used the same structure given in the Manual 5.3.3 but I get an error as of below:
face 1 in patch 0 does not have neighbour cell face: 4(1 2 4 3)

I do not know what it means I checked my vertices and assigned them anti-clockwise. Here is a copy of this small mesh. Can you help me about it?

vertices
(
(0 0 0)
(11.18111 4.98 0)
(11.18111 -4.98 0)
(11.18111 -4.98 1.7)
(11.18111 4.498 1.7)
);

blocks
(
hex (0 1 2 2 3 4 4 3) (20 20 20) simpleGrading (1 1 1)
);

edges
(
);

boundary
(
fixedWalls
{
type wall;
faces
(
(0 1 2 2)
(1 2 3 4)
(0 1 4 4)
(0 2 3 3)
);
}
fixedWalls
{
type empty;
faces
(
(3 4 4 3)
);
}

);

Hello,

I'm new to OpenFOAM but I tried to understand your problem.

I think the fifth coord is 4.98 (instead of 4.498). Then which form do you want to create with 5 points ? I thought it could be only the pyramid or the tet-wedge (according to the user guide).

And another issue is that the number of faces have to be lower than the number of vertices. (One more time, I guess, except if you create internal faces)

Maybe someone else can respond...

Victorien

Thank you Victorien. It was a typo mistake with the correct number I still got the error however that was only to see something else. Now I changed the structure and trying to build a mesh for a wind tunnel but thank you for the help.

problem was in the definiton of the hex block. It should work, if you use this code: