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how to set BC for compressible flow target mass flow rate

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Old   April 3, 2012, 16:12
Default how to set BC for compressible flow target mass flow rate
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I have a T shaped geometry. One inlet and two outlets.
Total flow rate is 500 slpm. The flow ratio for the outlets is 9:1.
I am using compressible flow to solve the flow.

inlet: mass flow intlet
outlet: pressure outlet with target mass flow rate turned on.

However,after 100k iterations, I still cannot get expected mass flow rate through the two outlets.

Could anybody give me some suggestions about this?
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Old   April 4, 2012, 03:24
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I also had problems with pressure outlet and traget mass flow rate (see

and here is how fluent does it:

In your case I would just use pressure outlet without traget mass flow rate and adjust the gauge pressure until you get your mass flow rate
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