[kingjewel1]

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.

/*--------------------------------*- 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.

/*--------------------------------*- 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.