Dear forum members,
I am dealing with multi-physics simulations which always involve the flow inside a pipe and the coupling to a different physical field, e.g. magnetic, acoustic, mechanic. Therefore, it is necessary to mesh the same domain, with different meshes suitable for CFD and for FEM. Since the meshing of the CFD part can be done in a dedicated CFD solver my questions are just about the FEM mesh:
-
I have already seen, that it is possible to mesh boundary layers using hexas or wedges as shown in Case A in the following figure. I am not completely sure, how I could achieve Case B using Trelis, where only the mid-side nodes of the outermost elements of the boundary layer are placed on the circular geometry. My most preferred solution would however be Case C, where all midside nodes of the boundary layer elements get place on concentric circles. Therefore the first question is, if and how I can achieve this in Trelis?
-
My FEM code can just handle tetras. Can I subdivide a hybrid mesh with (second-order) hexas and wedges into a pure (second-order) tetra mesh?
Thank you!
