[BakedAlmonds]

Hi,

I tried to split a block into different segments in order to define a mesh quality for each segment but I encountered some problem.:

this is the blockMeshDict I created:

/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.4.0 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format binary;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 1;

vertices
(
(-1100 -1100 0) //0 - 0
(1100 -1100 0) //1
(1100 1100 0) //2
(-1100 1100 0) //3
(-1100 -1100 10) //4 - 1
(1100 -1100 10) //5
(1100 1100 10) //6
(-1100 1100 10) //7
(-1100 -1100 20) //8 - 2
(1100 -1100 20) //9
(1100 1100 20) //10
(-1100 1100 20) //11
(-1100 -1100 35) //12 - 3
(1100 -1100 35) //13
(1100 1100 35) //14
(-1100 1100 35) //15
(-1100 -1100 40) //16 - 4
(1100 -1100 40) //17
(1100 1100 40) //18
(-1100 1100 40) //19
(-1100 -1100 50) //20 - 5
(1100 -1100 50) //21
(1100 1100 50) //22
(-1100 1100 50) //23
(-1100 -1100 60) //24 - 6
(1100 -1100 60) //25
(1100 1100 60) //26
(-1100 1100 60) //27
(-1100 -1100 65) //28 - 7
(1100 -1100 65) //29
(1100 1100 65) //30
(-1100 1100 65) //31
(-1100 -1100 80) //32 - 8
(1100 -1100 80) //33
(1100 1100 80) //34
(-1100 1100 80) //35
(-1100 -1100 100) //36 - 9
(1100 -1100 100) //37
(1100 1100 100) //38
(-1100 1100 100) //39
(-1100 -1100 120) //40 - 10
(1100 -1100 120) //41
(1100 1100 120) //42
(-1100 1100 120) //43
(-1100 -1100 140) //44 - 11
(1100 -1100 140) //45
(1100 1100 140) //46
(-1100 1100 140) //47
(-1100 -1100 160) //48 - 12
(1100 -1100 160) //49
(1100 1100 160) //50
(-1100 1100 160) //51
(-1100 -1100 200) //52 - 13
(1100 -1100 200) //53
(1100 1100 200) //54
(-1100 1100 200) //55
(-1100 -1100 240) //56 - 14
(1100 -1100 240) //57
(1100 1100 240) //58
(-1100 1100 240) //59
(-1100 -1100 280) //60 - 15
(1100 -1100 280) //61
(1100 1100 280) //62
(-1100 1100 280) //63
(-1100 -1100 320) //64 - 16
(1100 -1100 320) //65
(1100 1100 320) //66
(-1100 1100 320) //67
(-1100 -1100 360) //68 - 17
(1100 -1100 360) //69
(1100 1100 360) //70
(-1100 1100 360) //71
(-1100 -1100 400) //72 - 18
(1100 -1100 400) //73
(1100 1100 400) //74
(-1100 1100 400) //75
(-1100 -1100 470) //76 - 19
(1100 -1100 470) //77
(1100 1100 470) //78
(-1100 1100 470) //79
(-1100 -1100 500) //80 - 20
(1100 -1100 500) //81
(1100 1100 500) //82
(-1100 1100 500) //83
(-1100 -1100 1100) //84 - last - 4
(1100 -1100 1100) //85 - 5
(1100 1100 1100) //86 - 6
(-1100 1100 1100) //87 - 7
);

blocks
(
hex (0 1 2 3 4 5 6 7) (20 20 2) simpleGrading (1 1 1)
hex (4 5 6 7 8 9 10 11) (20 20 2) simpleGrading (1 1 1)
hex (8 9 10 11 12 13 14 15) (20 20 2) simpleGrading (1 1 1)
hex (16 17 18 19 20 21 22 23) (20 20 2) simpleGrading (1 1 1)
hex (20 21 22 23 24 25 26 27) (20 20 2) simpleGrading (1 1 1)
hex (24 25 26 27 28 29 30 31) (20 20 1) simpleGrading (1 1 1)
hex (28 29 30 31 32 33 34 35) (20 20 1) simpleGrading (1 1 1)
hex (32 33 34 35 36 37 38 39) (20 20 1) simpleGrading (1 1 1)
hex (36 37 38 39 40 41 42 43) (20 20 1) simpleGrading (1 1 1)
hex (40 41 42 43 44 45 46 47) (20 20 1) simpleGrading (1 1 1)
hex (44 45 46 47 48 49 50 51) (20 20 1) simpleGrading (1 1 1)
hex (48 49 50 51 52 53 54 55) (20 20 1) simpleGrading (1 1 1)
hex (52 53 54 55 56 57 58 59) (20 20 1) simpleGrading (1 1 1)
hex (60 61 62 63 64 65 66 67) (20 20 1) simpleGrading (1 1 1)
hex (64 65 66 67 68 69 70 71) (20 20 1) simpleGrading (1 1 1)
hex (68 69 70 71 72 73 74 75) (20 20 1) simpleGrading (1 1 1)
hex (72 73 74 75 76 77 78 79) (20 20 1) simpleGrading (1 1 1)
hex (76 77 78 79 80 81 82 83) (20 20 1) simpleGrading (1 1 1)
hex (80 81 82 83 84 85 86 87) (20 20 1) simpleGrading (1 1 1)
);

edges
(
);

boundary
(
inlet
{
type patch;
faces
(
(0 3 7 4)
(8 11 15 12)
(16 19 23 20)
(24 27 31 28)
(32 35 39 36)
(40 43 47 44)
(48 51 55 52)
(56 59 63 60)
(64 67 71 68)
(72 75 79 76)
(80 83 84 87)
);
}

outlet
{
type patch;
faces
(
(1 5 6 2)
(9 13 14 10)
(17 21 22 18)
(25 29 30 26)
(33 37 38 34)
(41 45 46 42)
(49 53 54 50)
(57 61 62 58)
(65 69 70 66)
(73 77 78 74)
(81 85 86 82)
);
}

ground
{
type wall;
faces
(
(0 1 2 3)
);
}

frontAndBack
{
type symmetry;
faces
(
(0 4 5 1)
(8 12 13 9)
(16 20 21 17)
(24 28 29 25)
(32 36 37 33)
(40 44 45 41)
(48 52 53 49)
(56 60 61 57)
(64 68 69 65)
(72 76 77 73)
(80 84 85 81)
(3 2 6 7)
(11 10 14 15)
(19 18 22 23)
(27 26 30 31)
(35 34 38 39)
(43 42 46 47)
(51 50 54 55)
(59 58 62 63)
(67 66 70 71)
(75 74 78 79)
(83 82 86 87)
(84 87 86 85)
);
}

);

mergePatchPairs
(
);

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

This is the error I got:

--> FOAM FATAL ERROR:
face 10 in patch 0 does not have neighbour cell face: 4(80 83 84 87)

From function polyMesh::facePatchFaceCells(const faceList& patchFaces,const labelListList& pointCells,const faceListList& cellsFaceShapes,const label patchID)
in file meshes/polyMesh/polyMeshFromShapeMesh.C at line 127.

FOAM aborting

[Antimony]

Hi,

Basically this error arises because the ordering of the vertices on the face does not follow the clockwise rule. As seen from within the block where this face is, the vertices defining the face should be in a clockwise order.

(80 83 84 87) is not in that order.

My guess is that it should be (80 83 87 84) based on your definition of the vertices.

Cheers,
Antimony