Orifice

Prince of Persia · December 18, 2011, 08:41

how can i do this simulation?

k_k · December 18, 2011, 11:12

you have to know the mass flow through the orifice plate. So can use either mass flow inlet/velocity inlet - pressure outlet or pressure inlet - mass flow outlet combinations. If you are using a velocity inlet boundary conditions and if it is a fully developed turbulent flow make sure you use a udf or user defined profile to define the fully developed turbulent velocity profile at inlet.

here is a useful material, but it is for laminar,

http://research.me.udel.edu/~lwang/teaching/MEEG102/

ghorrocks · December 18, 2011, 16:44

Yes, you can model this. But what do you want to get out of the model? Pretty pictures? Pressure drop? Flow cross section?

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December 18, 2011, 11:12		#2
k_k Member Kailash Join Date: May 2011 Location: London, UK Posts: 45 Rep Power: 14	you have to know the mass flow through the orifice plate. So can use either mass flow inlet/velocity inlet - pressure outlet or pressure inlet - mass flow outlet combinations. If you are using a velocity inlet boundary conditions and if it is a fully developed turbulent flow make sure you use a udf or user defined profile to define the fully developed turbulent velocity profile at inlet. here is a useful material, but it is for laminar, http://research.me.udel.edu/~lwang/teaching/MEEG102/

December 18, 2011, 16:44		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,700 Rep Power: 143	Yes, you can model this. But what do you want to get out of the model? Pretty pictures? Pressure drop? Flow cross section?