Non-Conservative Mass Flow Rate

ajhunte · May 28, 2013, 22:50

I am currently running a simulation with only one inlet and one outlet. I am getting kind of wonky data in the sense that the mass flow rate at the outlet is 45% less than that at the inlet. Is there a good reason that this should happen?

ABOUT MY SYSTEM:

Inlet --->Pipe ---> Smaller Diameter Pipe ---->Original Diameter Pipe----> Split in the system ---> recombine pipe ----> outlet

the split in the system is basically two pipes with equal diameter that form a circle. water goes in, splits, and then rejoins at the opposite side of the circle.

oj.bulmer · June 7, 2013, 11:53

The only reason can be that it hasn't converged

How do the mass imbalances look like?

OJ

May 28, 2013, 22:50	Non-Conservative Mass Flow Rate	#1
ajhunte New Member AJ Hunter Join Date: Feb 2013 Posts: 29 Rep Power: 13	I am currently running a simulation with only one inlet and one outlet. I am getting kind of wonky data in the sense that the mass flow rate at the outlet is 45% less than that at the inlet. Is there a good reason that this should happen? ABOUT MY SYSTEM: Inlet --->Pipe ---> Smaller Diameter Pipe ---->Original Diameter Pipe----> Split in the system ---> recombine pipe ----> outlet the split in the system is basically two pipes with equal diameter that form a circle. water goes in, splits, and then rejoins at the opposite side of the circle.

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June 7, 2013, 11:53		#2
oj.bulmer Senior Member OJ Join Date: Apr 2012 Location: United Kindom Posts: 473 Rep Power: 20	The only reason can be that it hasn't converged How do the mass imbalances look like? OJ