Hi,
I'm trying to simulate the flow of CO2 gas through a metalic filter that is placed at the inlet of the vessel, but the results that i get doenst look reliable. I want to see how is the flow through the filter and the pressure drop at the outlet of the vessel.
Should i also add the pressure at the inlet or only the flow rate ? If i set the outlet as environment pressure I will be able the find the pressure drop ?
You have a pretty big difference between the diameter of your vessel and the diameter of the holes in your filter, the first thing I would do is check the mesh and see how many cells you have through each hole in the filter, make sure you have good resolution there.
Personally, what I would do is simulate the filter separately with different pressures at the inlet to get a pressure/flow curve. Then I would use that data with a porous medium in the larger vessel simulation.