Vn,
Have you tried using a mapped mesh?
This would require a simple partition of the model (say, in half, by drawing a line, and extruding as a partition), so that the individual faces can be mapped.
Then, you define a 'shell mesh' for each face of interest (ie, those that enclose the volume you want to mesh), and then define corners for each face (pretty much automatic in this case), define the number of elements per edge (so you get the mesh density that provides the convergence you're looking for, etc, then define and build the solid auto-mesh [typ. would create bricks for this example, but could include wedge's if you use uneven element numbers, etc].
=> Best of all, this produces a fully associative mesh (and BC's if done on Geometry, not Mesh/Nodes) so you can have any what-if model changes update your FE model directly, saving a bumch of time when making multiple runs, etc.
Finally, to ensure everything behaves in a consistent manner, do be sure to constrain the partition geometry too (ie coincident to diameter edges, centerpoint, constrain the angle/horizontal, etc).
Regards,
Ed
PS: FYI, this technique (and a bunch of others) is part of basic analysis training in I-DEAS...
