I'm trying to simulate flow that goes through a nozzle and onto a surface and I'm having trouble figuring out how to do it.  I need the the flow to start at the inlet of the nozzle, exit the outlet, then hit the surface.  I have successfully gotten the flow to go through the nozzle but It stops at the outlet of the nozzle each time.  How do I make the flow continue out into the atmosphere and onto a surface so I can see how the airflow is once it leaves the nozzle?