I'm new to SolidWorks' flow simulations and ran the wizard choosing internal and air as the fluid. It tells me to create lids on the holes on the device as it's not watertight. After doing this, I'm trying to set the boundary conditions as inlet volume flow however, when I choose the face I get an error saying its outside of the computational domain. Would anyone be able to provide some assistance? I've attached the file I'm working with. Thanks