CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   CFX (https://www.cfd-online.com/Forums/cfx/)
-   -   Non-Conservative Mass Flow Rate (https://www.cfd-online.com/Forums/cfx/118503-non-conservative-mass-flow-rate.html)

ajhunte May 28, 2013 21:50

Non-Conservative Mass Flow Rate
 
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 10:53

The only reason can be that it hasn't converged :)
How do the mass imbalances look like?

OJ


All times are GMT -4. The time now is 02:56.