If there is no surface intersection in the geometry, there won't be anything under "intersection" in EnSight. This is the situation we want.

If there are surface intersections, you will see a few points (or marks) under "intersections":

Figure 3.35: Intersections as seen in EnSight

Note that not all the intersection marks are necessarily problematic—sometimes they can be ignored. However, there are some intersections that will cause meshing errors during the simulation, and they must be taken care of.