Fluent InCylinder tutorial
 

This is about In Cylinder tutorial that can be downloaded here http://www.fluent.com/software/sf_me..._si_engine.htm

I noticed that there are two overlapping edges here
http://www.freeimagehosting.net/uploads/0b5cba2d35.jpg

These are used to create a grid interface.
I'm working on a similar problem.
My question is how should I mesh the geometry to get the two overlapping edges.
I'll be making the geometry in ProE and using 'ansys 12 meshing' for creating the mesh.