A CFD problem, flow past a cylinder, I need a mesh that can be refined, so I use gmsh to generate my own mesh, but the mesh of gmsh cannot be used after being converted with gmsh2nek, and BCs-related errors occur when nekmpi is running.
The error output as
initialize pressure solver
0 40160 BC FAIL
EXIT: E INVALID BC FOUND in genfast 46912
an error occured: dying ...
1 25376 BC FAIL
4 46912 BC FAIL
BTW, (0 based index) element 46912 has exceeded the maximum index, and elements 40160 25376 are at the junction of local refinement. (1 based index) element 46912 is the last one, and elements 40160 25376 are outlet. But element 46912 is not in any special position enter image description here
My gmsh grid generation code is too long to be placed here.
I have tried to find someone else's gmsh code, change the order of their own code definition edges and faces, refine and coarsen the grid are the same problem, but it is no problem to use the. re2 converted by someone else's. msh, but he did not provide. geo, and the grid is too large, and the precision is not enough.
