Hi All,

I want to mesh a simple 2D rectangular block with a semi circle indentation on the top edge. I read in ICEM tutorials that a blocking is required when meshing, is this the only method? Is ICEM capable of creating nodes on the edges and compute meshes from the nodes (similar to FLUENT)? If so, where can I find some info on this?

THANKS! CC

hi cc,

you can mesh your 2D part automatically with tetras, sure, but in your case i would recomment a structured mesh.

i guess it depends on what you want... the blocking is time-consuming but delievers better results in a 2D case (just my opinion)

just use "volume meshing" under "global mesh setup" if you want to use the unstructured mesh.

anyway, any mesh you use, you will have good results! hexa is better because you waste less time of simulation, but with tetra mesh, you must refine the mesh very well and your time of cpu might be up to 10 times more (it depends on your case, of course).

Hi,

I need the mesh to be structured (Hexa). Does that mean I have to use "Blocking" or are there other ways (nodes?) of doing so?

Thanks, CC.

Try using hexa mesh without blocks! u will not have a control of refinement of mesh, but, it´s easier to create it!

CC, I don't know if it is possible to create and Hexa-mesh without blocks but blocking usually works well.

You can associate the blocks' edges to the physical edges and then specify the number of nodes and their distribution on these. Extra blocks/edges inside the geometry will only improve your control on what's going on.

Felix