Flow seems to be going through thin wall

Hello Everyone,

I'm running a simple CFD analysis on a thin walled component. It's an internal analysis and the component has some thin sheet metal parts in it. The analysis runs ok but when I look at a trajectory plot I see that some of the trajectory lines are going through the thin sheet metal walls of the component.

Is this normal or is there a parameter that I have to adjust to take care of this?

The Small solid feature refinement level is set to 6 and Cell refinement is on 4.

Thanks,

David

SolidworksFlow Simulation