I'm simulating 2 cocentric cylinder with a very small clearance between them.
I can't get the mesh to have a fluid only cells.
I've tried refining the elemnts in the partial cells, but i can't get them small enough without SW to lack of memory.
I get only square and straight elements and therefore they can't fit the cylindrical nature of my problem.
How can i make the mesh better fit my problem (refinement,shape,type, size)?