[HeloïseM]

Hello everyone,

I'm new to OpenFoam and I'm trying to create a mesh using blockMesh: I want to have a cylindar mesh but with an empty cylinder in the middle.
Here is my blockMeshDict file :

convertToMeters 0.001;

vertices
(
(3 0 0) //0
(0 3 0) //1
(-3 0 0) //2
(0 -3 0) //3 bottom circle
(3 0 5) //4
(0 3 5) //5
(-3 0 5) //6
(0 -3 5) //7 top
(1 0 0) //8
(0 1 0) //9
(-1 0 0)
(0 -1 0)
(1 0 5)
(0 1 5)
(-1 0 5)
(0 -1 5)
(0 0 0)
(0 0 5)
);

blocks
(
hex (0 1 9 8 4 5 13 12) (25 25 100) simpleGrading (1 1 1)
);

edges
(
arc 0 1 (2.127 2.127 0) //(cx + rcos45 cy + rsin45 0) bottom arc
arc 8 9 (0.709 0.709 0)

arc 4 5 (2.127 2.127 1) // top arc
arc 12 13 (0.709 0.709 1)
);

boundary
(
walls
{

type wall;
faces
(
(0 1 9 8)
);
}
atmosphere
{
type patch;
faces
(
(4 5 13 12)

);
}
external sides
{
type patch;
faces
(
(1 0 4 5)
);
}
internal sides
{
type patch;
faces
(
(9 8 12 13)
);
}

);

mergePatchPairs
(
);

And when i do blockMesh i get this error message :

Create time

Creating block mesh from
"/students/2023/magliano/OpenFOAM/magliano-2.1.x/run/BFS/constant/polyMesh/blockMeshDict"
Creating curved edges
Creating topology blocks
Creating topology patches


--> FOAM FATAL IO ERROR:
attempt to read beyond EOF

file: /students/2023/magliano/OpenFOAM/magliano-2.1.x/run/BFS/constant/polyMesh/blockMeshDict::boundary at line 91.

From function ITstream::read(token&)
in file db/IOstreams/Tstreams/ITstream.C at line 83.

FOAM exiting

Which is weird because it seems to me that the probleme isn't with the mesh itself but maybe I'm wrong.
Does someone could help me ?

[snak]

Hi HeloïseM,

--> FOAM FATAL IO ERROR:
attempt to read beyond EOF

file: /students/2023/magliano/OpenFOAM/magliano-2.1.x/run/BFS/constant/polyMesh/blockMeshDict::boundary at line 91.

From this message, boundary condition section in your blockMeshDict is suspected.

Boundary name should be one word without space in it. "external sides" and "internal sides" could be the cause of the error. "external-sides" and "internal-sides" will be OK.