Question: FDTD(FEM/MoM/etc.) for EM/Heat Flow?

I have Maple 12, and not MapleSim.  Has anyone stumbled across something that "runs on top" of Maple that is similar to COMSOL Multiphysics that runs on top of MATLab?  I'd like to figure out (without writing the Maple code myself...) how to import some simple 3D geometries and run some (possibly symbolic, probably numeric) simulations of electromagnetic and heat flow phenomena.  COMSOL uses FEM.  Is this something MapleSim could do?  I don't need anything that'll do "real world" geometries (i.e. something that'd take a day to run even if it were written in C), but I would like to find something that'll do things a little more complex than "an infinitely big sheet"...probably more complex than a clean analytical solution from symbolic equations in Maple could handle.