join structured and unstructured mesh
 

Hi everyone,
i have to mesh a circle with a boundary layer, so i used the follow technique: for the boundary layer i used a structured mesh (starting from the blocks, and then converted as unstructured), while for the inner part of the circle i used a unstructured mesh (AllTri, Patch Dependent). The problem is that i can't to join the nodes of the two different mesh when them meet.
Can someone help me?

David