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I met one big problem when i have converted SALOME mesh by UNV format and ideasToFoam utility.

It was not usual mesh, it contained pyramids. See fig.



I spent a lot time to achieve the same result like i can using ICEM. Only when i've found salomeToOpenFOAM script i successfully converted my mesh.

So i recommend it. The script is very helpful.

https://github.com/nicolasedh/salomeToOpenFOAM

This is a routine to perform a remap of fields from an interior surface to an inlet surface during the computation. In practice this can be used to produce an LES inflow belonging to the class of the so called "precursor methods". Still, this is actually done in parallel with the main computation and not in advance.

The attached pdf file contains an explanatory image of the method while the .c routine should be sufficiently commented to be readily usable by anyone who actually...

I have made significant improvement on the mesh export. The manual building up of OpenFOAM mesh now turns up really fast. I got a feeling that it could possibly beat even OpenFOAM's native blockMesh generator. In my test of a 3,200,000 mesh (for flow around a square cylinder). The building process took 90.51s in total. Here are more details:

...... [1] Done assembling the points. ( 7.09000s)
...... [2] Done assembling all cells & intnl cntrs. ( 40.62000s)...

Brief updates: I have succeeded optimizing some pieces of the code, from O(n^2) to O(n), but I still have another key module having the O(nlogn) complexity. It is unacceptable. I need to get rid of it.

Updates:

Finally, I got the boundary file output working. Now it is able to export to the OpenFOAM mesh format. But I still need to do some optimization (hopefully to make it back to log-complexity with hash tables, thanks to c++11). Currently it takes too much time to build an OpenFOAM mesh manually.

Also I have tested the code on a clean ubuntu 64 environment with virtualbox, it seems to me anyone who wants to use it needs vtk and qt installed. Using synaptic package...