Solver warnings: Finding group or patch names

Addons CfdOF / CFD
1

Hi,

I have experienced warnings with my mesh when starting a solver (hisa). A solution is obtained that is not unreasonable and no warnings are generated during meshing. The warnings are

Moving faces from patch patch_1_0 to patch 5
Moving faces from patch patch_2_0 to patch 6
Moving faces from patch patch_3_0 to patch 7
Moving faces from patch patch_4_0 to patch 8
Moving faces from patch patch_5_0 to patch 9
--> 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 9 of the same name.
--> FOAM Warning : 
    From function Foam::labelHashSet Foam::polyBoundaryMesh::patchSet(const Foam::UList<Foam::wordRe>&, bool, bool) const
    in file meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.C at line 804
    Cannot find any patch or group names matching patch_0_0
--> FOAM Warning : 
    From function Foam::labelHashSet Foam::polyBoundaryMesh::patchSet(const Foam::UList<Foam::wordRe>&, bool, bool) const
    in file meshes/polyMesh/polyBoundaryMesh/polyBoundaryMesh.C at line 804
    Cannot find any patch or group names matching patch_0_1

Doing topology modification to order faces.

If I rename the “wall” bc (shown below) to something else, the clash with patch 9 warning is gone. Strange since a warning for the"inlet" bc is not generated since same naming convention is used.
flow.jpg
I have no idea why the other two warnings are generated.

I would prefer not to generate these warnings. Can anyone indicate the source of these warning so I can make the appropriate changes?

I have attached the fcstd file for review.

Thanks for any guidance.

primer

OS: Fedora Linux 37 (MATE-Compiz) (MATE/mate)
Word size of FreeCAD: 64-bit
Version: 0.20.2.Unknown
Build type: Unknown
Python 3.11.1, Qt 5.15.8, Coin 4.0.0, Vtk 9.1.0, OCC 7.6.3
Locale: English/United States (en_US)
Installed mods: 
  * Plot 2022.4.17
  * FeedsAndSpeeds 0.5.0
  * Help 1.0.3
  * CfdOF 1.24.5
2

These are unfortunately a consequence of how CfdOF interfaces with OpenFOAM. There isn’t anything you can do as a user to avoid them - it would require some reworking of the code.

3

Hi,

Thanks for the quick response. I thought it could be just the way the process was structured with no significant impact. I just wanted to confirmed that it was not some failure on my part and I was messing up the calculations.

Thanks.

primer