Export mesh for post-processing

Product Support
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1

Dear Mr. Kazemian,

I hope you are doing well.

I am currently using RWIND for a CFD study involving wind loads on structures and I would like to perform additional post-processing and mesh sensitivity analyses outside the software environment.

I would like to know whether it is possible to access or export the computational mesh generated by RWIND. Ideally, I would be interested in obtaining the mesh in a standard format such as .msh (or any other compatible format) so that it can be examined and processed in external CFD or visualization software.

Could you please let me know if such an export option exists, or if there is any alternative method to retrieve the generated mesh?

Thank you very much for your time and assistance.

Kind regards

2

Hello tortuerenard89,

Thanks for your question,

Unfortunately, RWIND does not currently provide a built-in option to export the computational mesh directly to a standard mesh format such as .msh.

However, since RWIND solver is based on the OpenFOAM framework, the generated computational mesh is created internally in the OpenFOAM case directory during the simulation. The mesh can therefore be accessed in the OpenFOAM polyMesh format (located in the constant/polyMesh directory of the generated case).

C:\Users\Public\Documents\Dlubal\RWIND 3.09\Temp~RWIND_Simulation3\000379_Z\RF_Simul\Sim001_V01\ofcase0\constant\polyMesh

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The main mesh files inside this directory include:

  • points: A list of 3D vectors describing the XYZ coordinates of all vertices.

  • faces: A list of faces, defined by the indices of the points that make them up.

  • owner / neighbour: These files store the topology/connectivity by declaring which cell is on either side of an internal face (or just the owner for boundary faces).

  • boundary: Defines the patch names (e.g., inlet, outlet, walls), patch types, and the specific faces belonging to each group

https://doc.cfd.direct/openfoam/user-guide-v13/mesh-files

If you require the mesh in another format (e.g., .msh), you may need to use external OpenFOAM conversion utilities or third-party software capable of converting OpenFOAM meshes to other formats. Please note that this workflow is not officially supported by RWIND, and compatibility with external software cannot be guaranteed.

If your goal is to perform mesh quality or sensitivity analyses, please let me know your specific workflow or the software you intend to use. We may be able to suggest the most suitable approach.

Kind regards,

Mahyar Kazemian