boundary condition

sara22 · April 16, 2013, 09:47

Hi friends
I want to simulate pipe that has a developed condition at the inlet.and exit of pipe has a outflow condition.for fully developed boundary condition at the inlet of pipe,what can i do?
thanks

RodriguezFatz · April 16, 2013, 10:12

You need to get the fully developed boundary condition from an additional simulation. Create a pipe and set inlet and outlet as a periodic boundary condition with a certain target pressure drop or mass flow rate. If this is converged you can store the outlet profile and load it to any other simulation as an inlet profile.

April 16, 2013, 09:47	boundary condition	#1
sara22 Member Sa.Baraty Join Date: Apr 2013 Location: Iran Posts: 50 Rep Power: 13	Hi friends I want to simulate pipe that has a developed condition at the inlet.and exit of pipe has a outflow condition.for fully developed boundary condition at the inlet of pipe,what can i do? thanks

April 16, 2013, 10:12		#2
RodriguezFatz Senior Member Philipp Join Date: Jun 2011 Location: Germany Posts: 1,297 Rep Power: 26	You need to get the fully developed boundary condition from an additional simulation. Create a pipe and set inlet and outlet as a periodic boundary condition with a certain target pressure drop or mass flow rate. If this is converged you can store the outlet profile and load it to any other simulation as an inlet profile. __________________ The skeleton ran out of shampoo in the shower.

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