May I know what should be the boundary condition for a cylinder in free stream in an o-grid?

I wonder if this is correct:

flow is coming from left to right

fixed inlet velocity for outer mesh on left half of o-grid

assign du/dn and dv/dn for outer mesh on right half of o-grid

no slip velocity for mesh next to cylinder surface

dp/dn=0 on all edges except that at right half of o-grid, p=0 (equal to fixing outlet pressure)

Hope someone can give me some help. Thank you.

Sounds reasonble.

Dont forget to test the result sensitivity to your BC locations.

what about boundary conditions on symetrical airfoil in O-grid, is that the same as cylinder?