[klausb]

Hello,

I've created a flow domain including an airfoil to do a quasi 2D flow simulation (as I couldn't figure out whether there's a way to create a 2D mesh with boundary layer cells which is then extruded into 3D - just one layer thick).

My problem is, that the surface orientation is always wrong. Either the airfoil is correct OR the domain is correct but I am not able to change the surface orientation of just one of them to align them as needed for meshing.

I need a volume mesh between the outside of the airfoil and the inside of the domain of course. As you can see on the picture, the back (inside of the flow domain) has the wrong surface orientation.

How can I change the surface orientation of individual elements (airfoil or domain)?

Klaus