[Antonx963]

Dear,

I'm an mechanical eng student with a first course on CFD in openfoam, and for an examination excercise i have to calculate the flow around 2 cillinders, diameter 2, distance 6. When trying to get the blockmesh to render, the same error was met time and time again, being face 0 in patch 0 does not have neighbour cell face. This occurs in the boundary part in cylinder 1 and 2. I have checked everything time and time again, even flipping the surfaces multiple times, with the same results. Any help? Thanks in advance!

convertToMeters 1;

vertices
(
(-23 -25 0)//0
(23 -25 0)//1
(40 -25 0)//2
(-0.7071 -0.7071 0)//3
(0.7071 -0.7071 0)//4
(-0.7071 0.7071 0)//5
(0.7071 0.7071 0)//6
(-23 25 0)//7
(23 25 0)//8
(40 25 0)//9

(-23 -25 1)//10
(23 -25 1)//11
(40 -25 1)//12
(-0.7071 -0.7071 1)//13
(0.7071 -0.7071 1)//14
(-0.7071 0.7071 1)//15
(0.7071 0.7071 1)//16
(-23 25 1)//17
(23 25 1)//18
(40 25 1)//19
);

blocks
(

hex (0 3 5 7 10 13 15 17) (30 15 1) simpleGrading (1 1 1)//0
hex (1 4 3 0 11 14 13 10) (30 15 1) simpleGrading (1 1 1)//1
hex (4 1 8 6 14 11 18 16) (30 40 1) simpleGrading (1 1 1)//2
hex (6 8 7 5 16 18 17 15) (30 15 1) simpleGrading (1 1 1)//3
hex (1 2 9 8 11 12 19 18) (15 40 1) simpleGrading (1 1 1)//4
);

edges
(
arc 3 5 (-1 0 0)
arc 5 6 (0 1 0)
arc 6 4 (1 0 0)
arc 4 3 (0 -1 0)
arc 13 15 (-1 0 1)
arc 15 16 (0 1 1)
arc 16 14 (1 0 1)
arc 14 13 (0 -1 1)
);

boundary
(
cylinder
{
type wall;
faces
(
(3 5 15 13)
(5 6 16 15)
(16 6 4 14)
(4 3 13 14)
);
}

outlet
{
type patch;
faces
(
(2 9 19 12)
);
}

inlet
{
type patch;
faces
(
(17 7 0 10)
);
}

bottom
{
type symmetryPlane;
faces
(
(0 1 10 11)
(1 2 11 12)
);
}

top
{
type symmetryPlane;
faces
(
(7 17 18 8)
(8 18 19 9)
);
}
sides
{
type empty;
faces
(
(7 5 3 0)
(7 8 6 5)
(3 4 1 0)
(8 1 4 6)
(8 9 2 1)
(18 17 15 16)
(15 17 10 13)
(14 13 10 11)
(18 16 14 11)
(19 18 11 12)
);
}
);

mergePatchPairs
(
);