[hasse94]

Hi everyone.

I am trying to build a straight wind tunnel with a block body in located in the bottom of the wind tunnel.


However when I run blockMesh, I get the error:

Create time

Creating block mesh from
    "/home/hasse/OpenFOAM/hasse-6/run/BackWardsFacingStepChangeGeometry/system/blockMeshDict"
Creating block edges
No non-planar block faces defined
Creating topology blocks
Creating topology patches

Creating block mesh topology


--> FOAM FATAL ERROR: 
face 1 in patch 3 does not have neighbour cell face: 4(13 3 2 12)

    From function Foam::labelList Foam::polyMesh::facePatchFaceCells(const faceList&, const labelListList&, const faceListList&, Foam::label) const
    in file meshes/polyMesh/polyMeshFromShapeMesh.C at line 118.

FOAM aborting

#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::error::abort() at ??:?
#2  Foam::polyMesh::facePatchFaceCells(Foam::List<Foam::face> const&, Foam::List<Foam::List<int> > const&, Foam::List<Foam::List<Foam::face> > const&, int) const at ??:?
#3  Foam::polyMesh::setTopology(Foam::List<Foam::cellShape> const&, Foam::List<Foam::List<Foam::face> > const&, Foam::List<Foam::word> const&, Foam::List<int>&, Foam::List<int>&, int&, int&, Foam::List<Foam::cell>&) at ??:?
#4  Foam::polyMesh::polyMesh(Foam::IOobject const&, Foam::Xfer<Foam::Field<Foam::Vector<double> > > const&, Foam::List<Foam::cellShape> const&, Foam::List<Foam::List<Foam::face> > const&, Foam::List<Foam::word> const&, Foam::PtrList<Foam::dictionary> const&, Foam::word const&, Foam::word const&, bool) at ??:?
#5  Foam::blockMesh::createTopology(Foam::IOdictionary const&, Foam::word const&) at ??:?
#6  Foam::blockMesh::blockMesh(Foam::IOdictionary const&, Foam::word const&) at ??:?
#7  ? in "/opt/openfoam6/platforms/linux64GccDPInt32Opt/bin/blockMesh"
#8  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#9  ? in "/opt/openfoam6/platforms/linux64GccDPInt32Opt/bin/blockMesh"
Aborted (core dumped)

My blockmeshDict file looks like this:

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  6
     \\/     M anipulation  |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 0.001;

vertices
(
    (0 0 -0.5)  
    (0 250 -0.5)  
    (250 0 -0.5) 
    (250 50 -0.5)  
    (250 250 -0.5)
    (300 0 -0.5)
    (300 50 -0.5)
    (300 250 -0.5)
    (1000 0 -0.5)
    (1000 250 -0.5)

    (0 0 0.5)  
    (0 250 0.5)
    (250 0 0.5)  
    (250 50 0.5) 
    (250 250 0.5)  
    (300 0 0.5)
    (300 50 0.5)
    (300 250 0.5)
    (1000 0 0.5)
    (1000 250 0.5) 
);


blocks
(
    hex (0 2 4 1 10 12 14 11) (50 100 1) simpleGrading (1 3 1)
    hex (3 6 7 4 13 16 17 14) (30 100 1) simpleGrading (1 3 1)
    hex (5 8 9 7 15 18 19 17) (50 100 1) simpleGrading (1 3 1)
);

edges
(
);

boundary
(
    inlet
    {
        type patch;
        faces
        (
            (0 10 11 1)
        );
    }
    outlet
    {
        type patch;
        faces
        (
            (8 9 19 18)
        );
    }
    upperWall
    {
        type wall;
        faces
        (
            (1 4 14 11)
            (4 7 17 14)
            (7 9 19 17)
        );
    }
    lowerWall
    {
        type wall;
        faces
        (
            (0 10 12 2)
            (13 3 2 12)
            (13 3 6 16)
            (16 6 5 15)
            (15 5 8 18)
        );
    }
    frontAndBack
    {
        type empty;
        faces
        (
            (0 1 4 2)
            (3 4 7 6)
            (5 7 9 8)
            (14 11 10 12)
            (17 14 13 16)
            (19 17 15 18)
        );
    }
);

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

Can you give a hint or help to find the source of the error? I have tried to change the face mentioned in the error, but the error does not change.