[jackbell1997]

I am testing the vorticity contour which is applied to the vortex core region of a NACA2412 wing, similar to that of a Cessna 172S. However when I decrease the level of the vortex core region, it creates a simulation on the pressure far field boundary part of the domain. How do just have the vortex core region on the solid part and not the domain boundary, do I have to create a domain specifically on the wing? if so how do I go about this? I very much appreciate any replys thank you. (I have attached a picture with this to make it clearer what the problem is).