Profiles far from Wall
 

Good Night

I'm running a 2D case of a geometry similar to a rocket nozzle and comparing the Cps in the center and walls, but I want data in the middle of this two locations. I'm creating a line in the center (create line/rake tool) and extracting the profiles data from the center. My question is:

How can I offset the wall geometry to draw a line that follows the wall contour ?

Is there any other method to extract these data ?

thanks !