Velocity inlet BC problem -- CFD Online Discussion Forums

October 14, 2009, 09:52	Velocity inlet BC problem	#1
Figd84 Member Felipe Gutiérrez Donoso Join Date: Mar 2009 Posts: 31 Rep Power: 17	I have a 5" plate orifice device in a pipe system. The calculated speed at the inlet is 0.61 m/s (20" inlet), that corresponds to 120 lt/s. I run the calculation and the resulting mean velocity in the orifice is 3.2 m/s, something diferent to the 9.2 resulting from dividing Flow/area. The fluid is incompresible, any suggestion about it??

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