Difference between revisions of "Contrib/SplitMeshWithSets"

Revision as of 14:52, 9 January 2013

Valid versions:

1 Short description

Splitting a mesh like it is described in Importing a FLUENT mesh with internal walls has problems if it is to be done twice: because the original splitMesh renumbers the faces but the faceSets are not updated it is possible that the information in the faceSets is wrong. This utility updates the sets.

2 Usage

The same as splitMesh. After the mesh was split all faceSets are updated in the following way

• the faceSet that was used to split the mesh is erased (set to zero length)
• all other faceSets are updated so that the renumbering of the faces is taken into account

another difference to the original behaviour of the original splitMesh is that boundaries with 0 faces are not erased.

The new, empty patches must be inserted after the regular boundary patches in the boundary file otherwise some very strange errors may occur.

3 Download

For OpenFOAM 1.2: The tar file with the sources

For OpenFOAM 1.3: The tar file with the sources

For OpenFOAM 1.4.1: The tar file with the sources provided by Bernhard

For OpenFOAM 2.1.x: splitMeshWithSets-2.1.x.tar.gz --El Safti (talk) 13:54, 9 January 2013 (CET)

3.1 OpenFOAM 1.3

There is a special version that compiles on Version 1.3. Please note when using this recipie that in OpenFOAM 1.3 empty patches without a starting face are treated differently: now the starting face must be one face after the last face. If it is left empty OpenFOAM assumes that it is zero.

3.2 Compilation problems

Some newer non-standard versions of have the problem, that the constructor for attachDetach has changed. Change the call

 
    tm[0] =
        new attachDetach
        (
            "Splitter",
            0,
            pMesh,
            "membraneFaces",
            masterPatch,
            slavePatch,
            scalarField(1, runTime.value())
        );

to

 
    tm[0] =
        new attachDetach
        (
            "Splitter",
            0,
            pMesh.morphEngine(),
            "membraneFaces",
            masterPatch,
            slavePatch,
            scalarField(1, runTime.value())
        );

4 Note

If two faceSets are joined like a T some faces are dropped (which faces depends on the order you split these sets). The problem is described in detailed on the MessageBoard.

5 History

• first Version added
• 2006-04-03: Version for OpenFOAM 1.3 added

--Bgschaid 18:57, 27 Feb 2006 (CET)