extract line normal to the surface
 

Hi guys,

Basically, I am sure it is pretty simple, but I am doing a RANS simulation around an aerofoil and I would like to extract selections normal to the aerofoil, in order to plot the velocity profile and calculate boundary layer thickness

Although I have looked through the forum and not found anything that I understand (pretty new to OF)

Any help would be greatly appreciated,

Jack

P.S. I'm not sure if anyone has done this before either, but I would like to be able to count the number of points in the boundary layer (I am using an unstructured mesh all the way to the wall)

Cheers