[raunakjung]

I am trying to run a simulation using compressed air. Compressed air is fed to the inlet with maximum pressure 15 Bar. The supply rate is controlled by air flow controller allowing mass flow up to 25 g/s. and the outlet is into atmospheric condition.
How do I setup my boundary conditions for the experiment ?
Which system is more robust - pressure inlet condition or mass flow rate condition ?
Do I need to change the density of air at the inlet conditions ?

Please help me in understanding the problem.
Thank You