Pressure drop due to contraction and a subsequent expansion -- CFD Online Discussion Forums

February 13, 2012, 07:34	Pressure drop due to contraction and a subsequent expansion	#1
lionel89 New Member Join Date: Feb 2012 Posts: 1 Rep Power: 0	I need to know pressure drop acoss an obsrtuction which has contraction and a subsequent expansion (imagine an extended orifice in a tube) I solved the problem in 2D and 3D both but the 3D results are closer to the theoretical calculations. The 2D results almost deviate by 100-110% The solver is FLUENT. Can anyone please help??? Is it because of the vorticity?? I am unable to get it.

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