[bastian173]

Hi all

for a DES/LES simulation (solver fluent) of a rib-roughened, squared channel with 30 ribs I need to refine the corresponding mesh at some (repeating) regions. For the meshing, only a part of the channel with one rib element should be generated (blocked, premesh …) and then extruded by transforming the unstructured mesh. The mesh consist of hexa elements. Without refinement it works well. With refinement there occurs problems due to the "hanging nodes / non manifold vertex".

For Meshing I use ICEM

Some ideas for handling the transformation of refined unstructured meshes? Would be great…Thanks.