ICEM clustering of mesh points and multiple edges

webhaw

As, I am meshing a aircraft, i have imported the geometry from solid works and try to mesh it.

a) As i am giving command for meshing using tetra cells. It generates the mesh. But the mesh is not growing (from surface) as per the expansion funtion, mesh density & tetra cell ratio, i have given . It generate N (number of cells) uniform size mesh cells from the surface, after that the mesh cell size is limited to maximum size element and just filling the volume.

Can anybody help me for the proper(without much jump) expansion of mesh from the surface in tetra mesh?

b) Some how i genearted mesh with the tetra cells without clustering and all. After the mesh check, it shows Multiple edges in some area. When i zoom the area, i find it is not desirable. But i really don't know how to remove them.

can you help me regarding Multiple edges, how to avoid them?

please help me.......

Thanks for reading this msg