Karthik R
Hi,nA solution would be to not flush the overset mesh on to the symmetry planes. I'm assuming that these are the front and back planes (out of and into the screen). Since your computational domain is going to have to be pretty large in these directions anyway, you might want to shorten the overset region in the wake of the wing. The wake is not likely to extend too far in the Y direction away from the wing. If you do this, you can use the overset interface condition here.nKarthikn