[Nek5000-users] Mesh with two blocks

[nek5000-users at lists.mcs.anl.gov]

Hi,

I would like to get some insights on how Nek5000 deals with meshes that contains more than one block. I generated a 2-D mesh with Cubit and was able to convert it to a re2 format with exo2nek but I do not know how to differentiate each block in the usr file to set boundary conditions for instance.

I went through the examples and did not find anything relevant to my question. Does anybody have experience with multi-block mesh? What is the proper approach when dealing with multi-block meshes in Nek5000?

Thanks,

Marco