Given the inefficiencies of switching between the two meshes I'd consider using a pave mesh and adaption. Same flexibility (assuming you want to move the wake refinement) but much easier to manage and control.https://forum.ansys.com/discussion/comment/104065#Comment_104065

Hi Rob,nnCould you please pass on information, whether a link or detail as to using a pave mesh, I'm not familiar with this. One thing with what I've done with the overset is it lies parallel to the wake with and meshes along the trefftz plane at every downstream station (if that makes sense).n