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changeDictionaryDict post-processing wall>patch

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Old   March 16, 2016, 08:27
Default changeDictionaryDict post-processing wall>patch
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Join Date: Jul 2009
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Hi everyone,

Short explanation: Is there a way of changing boundary patch type after running your case? I need to go from wall to patch in order to sample my surfaces

Long:

After doing snappyHexMesh it makes my stl objects into walls. I've run my case and now want to sample the pressure on the surface of my stl walls with sampleDict.

Code:
/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.0                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      sampleDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

setFormat raw;
surfaceFormat vtk;

interpolationScheme cellPoint;

// Fields to sample.
fields
(
    p
);

sets
(
);

surfaces
(
    cubes
    {
        type            wall;
        patches         ("cubes");
    }
);


// *********************************************************************** //
But it won't sample a wall. So need to use changeDictionaryDict to change the constant/polyMesh/boundary for cubes from wall to patch.

Code:
/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | foam-extend: Open Source CFD                    |
|  \\    /   O peration     | Version:     3.0                                |
|   \\  /    A nd           | Web:         http://www.extend-project.de       |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      changeDictionaryDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dictionaryReplacement
{
    boundary
    {
        cubes
        {
            type            patch;
        }
    }
}

// ************************************************************************* //
This doesn't work.
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