I tried to do the Tutorial " Incompressible Turbulent Airflow Around a Spoiler" for my application. The issue i am facing is that my simulation results only appear on the wall of my flow region and not inside, so the airflow around the rearwing is not displayed.
Hello pkiontke,
thanks for reaching out to us here in the forum.
What you are observing is the real physical phenomenon called boundary layer.
For a flow over a surface the velocity directly at the surface will be 0 with a gradient towards the free stream until, until the free stream velocity is reached.
As you are displaying velocity at the surface this is 0 for the wing.
The reason that you are seeing a velocity at the symmetry plane and other walls of the flow region, is that by definition in the tutorial the velocity gradient is disabled for the walls.
A brief example of this can be seen here:
Best regards
Sebastian