Did You Know? about the tetra remesh capability available in HyperMesh. Use case: You have a volume mesh and would like to introduce a refinement zone or a baffle, see below (May 20, 2013)
Select in the “tetra remesh” panel the 2D shell elements representing the baffles as well as the refinement zone. HyperMesh will perform a local remesh of the tetramesh and will consider the baffles and the refinement zone.