[uzy]

hi dear all,
I get this error when I run pisoFoam. Has anyone experienced this error before? How can I fix?
Thanks in advance!

Reading field p

--> FOAM Warning : 
    From function const Foam::HashTable<Foam::List<int>, Foam::word>& Foam::polyBoundaryMesh::groupPatchIDs() const
    in file meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.C at line 473
    Removing patchGroup 'wall' which clashes with patch 2 of the same name.


--> FOAM FATAL IO ERROR: 
Cannot find patchField entry for cyclic1

file: /home/mekim/OpenFOAM/mekim-7/run/0/p.boundaryField from line 26 to line 51.

    From function void Foam::GeometricField<Type, PatchField, GeoMesh>::Boundary::readField(const Foam::DimensionedField<TypeR, GeoMesh>&, const Foam::dictionary&) [with Type = double; PatchField = Foam::fvPatchField; GeoMesh = Foam::volMesh]
    in file /home/ubuntu/OpenFOAM/OpenFOAM-7/src/OpenFOAM/lnInclude/GeometricBoundaryField.C at line 191.

FOAM exiting

My p file:

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.1                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    location    "0";
    object      p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions      [ 0 2 -2 0 0 0 0 ];

internalField   uniform 0;

boundaryField
{
    inlet
    {
        type            zeroGradient;
    }
    outlet
    {
        type            fixedValue;
        value           uniform 0;
    }
    backcyc
    {
        type            cyclicAMI;
    }
    frontcyc
    {
        type            cyclicAMI;
    }
    periodic2
    {
        type            cyclicAMI;
    }
    periodic1
    {
        type            cyclicAMI;
    }
    wall
    {
        type            zeroGradient;
    }

}


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

[ingraban]

Could you also post the file /constant/polyMesh/boundary, please ?

[uzy]

thank u for your helping.
My boundary file:

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  7
     \\/     M anipulation  |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       polyBoundaryMesh;
    location    "5e-05/polyMesh";
    object      boundary;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

7
(
    inlet
    {
        type            patch;
        nFaces          147;
        startFace       78626;
    }
    outlet
    {
        type            patch;
        nFaces          119;
        startFace       78773;
    }
    wall
    {
        type            wall;
        inGroups        List<word> 1(wall);
        nFaces          370;
        startFace       78892;
    }
    cyclic1
    {
        type            cyclicAMI;
        inGroups        List<word> 1(cyclicAMI);
        nFaces          268;
        startFace       79262;
        matchTolerance  0.0001;
        transform       translational;
        neighbourPatch  cyclic2;
        separationVector (0 -0.032841912 0);
        method          faceAreaWeightAMI;
    }
    cyclic2
    {
        type            cyclicAMI;
        inGroups        List<word> 1(cyclicAMI);
        nFaces          268;
        startFace       79530;
        matchTolerance  0.0001;
        transform       translational;
        neighbourPatch  cyclic1;
        separationVector (0 0.032841912 0);
        method          faceAreaWeightAMI;
    }
    cyclic3
    {
        type            cyclicAMI;
        inGroups        List<word> 1(cyclicAMI);
        nFaces          39606;
        startFace       79798;
        matchTolerance  0.0001;
        transform       translational;
        neighbourPatch  cyclic4;
        separationVector (0 0 -0.0005);
        method          faceAreaWeightAMI;
    }
    cyclic4
    {
        type            cyclicAMI;
        inGroups        List<word> 1(cyclicAMI);
        nFaces          39606;
        startFace       119404;
        matchTolerance  0.0001;
        transform       translational;
        neighbourPatch  cyclic3;
        separationVector (0 0 0.0005);
        method          faceAreaWeightAMI;
    }
)

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

[ybapat]

Please provide BCs for patches cyclic1 to cyclic4.



Regards,
-Yogesh

[ingraban]

In your boundary file, you provide the boundaries/patches for your flow problem. For each of the boundaries: inlet, outlet, wall, cyclic1, cyclic3, cyclic3, cyclic4, you have to provide boundary data, e.g. in your p-file.

In your p-file, you only provide boundary data for inlet, outlet, wall, frontcyc, periodic1, periodic3.

As the names of your boundaries don't match, OpenFoam is unable to find boundary data for the patch cyclic1.

[uzy]

thank u, I solve it.