OpenFoam Mesh Converter
 

All,

I am attempting to write a mesh converter that converts an inhouse mesh format to polyMesh format. I have completed, I hope, the converter but am having problems viewing it in paraview. This is what I'm looking to get help with. I am very familiar with the mesh format but am lost as to how to view this kind of mesh in paraview. I have all of the files required in the constant/polyMesh folder, i.e. points, faces, owner, neighbour, and boundary.

Any help would be greatly appreciated.

Thanks,

Hello David,

what have you tried, and why has it failed?

What has been tried
 

Thanks for the reply. All I have tried is using the documentation to try and figure out how to use paraview to open the mesh. I can't find the correct option in the menu of supported file types in order to read the mesh that I've converted.

What should have I been trying?

You could try to set up a bare-bone OpenFOAM case, then run foamToVTK and open the resulting VTK file with paraview (alternatively paraFoam without the intermediate foamToVTK).

foamToVTK
 

Thanks for the help. I was thinking that was going to be one my only options. I was trying to find out how to read just the mesh without any simulation data so that I can test larger geometries which will allow me to test the complexity of my algorithm(s) without having to contrive some simulations.

Any other avenues I could explore?

You don't need any simulation data, just the folder structure.

Just need the folder structure
 

Please pardon my ignorance but I guess I am missing something. When I run foamToVTK it exits with a:

"// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time



--> FOAM FATAL ERROR:
No times selected

From function foamToVTK
in file db/Time/timeSelector.C at line 240.

FOAM exiting"

I also still cannot find the correct option in paraview to open the OpenFOAM mesh. Is this possible?

I'm assuming you have no time directories. In that case all you need is "mkdir 0" and all will be good.

checkMesh and renumberMesh
 

So, I decided to run a checkMesh on the converted mesh and got an error in the form of
"
Foam::primitiveMesh::checkUpperTriangular(bool, Foam::HashSet<int, Foam::Hash<int> >*) const
"

I did some searching on the forum and then tried the following command
"
renumberMesh -constant -overwrite
"

The renumbering, which I thought would take care of the upperTriangular issue, exited with no errors. I then tried the checkMesh utility on the mesh created from renumberMesh and got the same error as before.

Any ideas on this one?