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-   -   Flotherm heat flow inbalance (https://www.cfd-online.com/Forums/floefd-floworks-flotherm/152842-flotherm-heat-flow-inbalance.html)

zdunol May 10, 2015 18:23

Flotherm heat flow inbalance
 
Hello,

In my simulation the heat flow balance is wrong, the net difference is equal to 0.5 [W] which corresponds to 5% of inflow :(

I created two symmetry boundaries in the model, because my geometry has two symmetry planes (it's a cylinder with some cuboidal stuff inside), does it mean that those symmetry boundaries shouldn't be there?

I guess I should also run simulation for a little bit longer (residuals and monitor point values are fine), and then run it on refined grid, right?

Do you have any suggestions?

thanks, Pawel

zdunol May 13, 2015 17:51

progres
 
I created finer mesh (3milion cells) and inbalance dropped about 10times, so I guess that was the main reason.


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