open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi everyone,

I generated a fine mesh in BlueKenue with a maximum edge length of 1 cm, and the mesh analysis shows a minimum edge length of around 1 mm. However, when I start the simulation, I receive an error stating that the mesh is too small.

Has anyone worked with very fine meshes in TELEMAC and encountered similar issues?

Thank you!

Hi

1mm is a harcoded value in the checkmesh.f file (utils\bief).
You could add checkmesh.f into your user fortran and then bypass this error.
I don't think users built mesh with such small size...
Did you try to create a model of a small scale physical experiment?

Hope this helps

Thank you! I was curious whether there was a specific hardcoded value like this.

I'll try your tip with the checkmesh.f!

And yes, I'm trying to replicate a small-scale physical experiment, and since the error occurred, I was thinking of scaling it up a bit. But I haven't had time so far...

In a perfect world, this harcoded value should be replaced by a default value linked to a dedicated keyword...
I think this value has been chosen because in nature modeling we rarely represent details lower than 1mm.
Most of the time, this message allow users to identify a problem in their mesh (two nearest points in a constraint line for example)
Small scale physical model often suffer of distorsion problem leads by constraint on the spatial extent of the lab which is not the case of numerical model. Maybe you could think to build you model at the real scale...
Regards