# Over constrained Boundary Conditions

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 June 3, 2011, 03:12 Over constrained Boundary Conditions #1 Senior Member   --------- Join Date: Oct 2010 Posts: 303 Rep Power: 9 Can some one please tell me if it is a over constrained approach to specify both volumetric flow rate and pressure on a inlet boundary __________________ Best regards, Santhosh.

 June 3, 2011, 05:13 #2 New Member   Redddy Join Date: Sep 2010 Posts: 25 Rep Power: 8 yes, absolutely it is over constrained approach. moreover, its not possible to given two boundary conditions at one side. May i know where you want to use?

 June 3, 2011, 07:57 #3 Senior Member   --------- Join Date: Oct 2010 Posts: 303 Rep Power: 9 Hi, Can you please tell me how to calculate pressure over the inlet given the volume flow rate and the fluid used being Air __________________ Best regards, Santhosh.

 June 3, 2011, 11:15 #4 New Member   Redddy Join Date: Sep 2010 Posts: 25 Rep Power: 8 you can calculate velocity for given flow rate. then calculate total pressure over surface by using static pressure plus dynamic pressure. Still, u had not in circle, describe your problem in detail..

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