Fluid Manifold Boundary Conditions

jei50310 · June 20, 2016, 21:07

Hello All,

I am new to using CFD software. I am pretty experienced with solid modeling and using ANSYS but I am not with CFD. I am running a analysis on a fluid manifold system. The system has two 8" inlets into a 12" pipe. there are 16-4" outlets that feed to pumps. I know the flow rate in and the pressure the feed pump supplies. I need some guidance on setting the proper boundary conditions. I am trying to analyze the flow rate and velocity at each port (out).

bighead · July 27, 2016, 22:42

outlets should be a pressure boundary conditions (P_gage = 0). Checked that the velocity profile is parabolic, ie fully developed. If not, u need to extend the length of the 4in pipe. For inlets, you can choose volumetric flowrate or fixed velocity.

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July 27, 2016, 22:42		#2
bighead New Member Melvin. Join Date: Mar 2009 Location: Singapore Posts: 27 Rep Power: 17	outlets should be a pressure boundary conditions (P_gage = 0). Checked that the velocity profile is parabolic, ie fully developed. If not, u need to extend the length of the 4in pipe. For inlets, you can choose volumetric flowrate or fixed velocity.