Aditya Kashi - 2014-05-19

Hello
I'm using Netgen to define geometry and create meshes for my ongoing
project, in which I simulate fluid flow and heat transfer in a cooling
plate using the Fenics library.
In the geometry module (ie, in a geo file) is there any way to take a
union of two solids while preserving internal boundaries?
Thanks a lot!
Aditya