Different Types of meshing
 

Hey,

I have a question about using different sorts of meshes in Gambit.
I want to split up a face in 4 different faces. In 2 faces i want to use a Tri - Pave mesh and in the 2 others a Quad - Map mesh.

http://i405.photobucket.com/albums/p...eertens/Q1.png

In front and aft of the 'boat' i should use a Quad - map mesh for a good resolution of the free water surface. All the rest doenst really matter so i use a tri mesh.

http://i405.photobucket.com/albums/p...eertens/Q5.png

The boat is substracted from the Flow Volume and the meshing is ok. But when i export te mesh, Gambit makes a (default) wall BC of the edges 1-4 (colored in red)

http://i405.photobucket.com/albums/p...rtens/Q5-1.png

So what should i do so i can split up the face for an optimal meshing but without this wall BC?

any help is appreciated!!

Vincent