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May 21, 2022, 04:27 |
Volume flow rate as the boundary condition
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#1 |
New Member
Zhang Yan
Join Date: Nov 2021
Posts: 15
Rep Power: 4 |
Hello everyone!
I faced some problems when using Star-CCM+. (1) In engineering field, volume flow rate is more commonly used than mass flow rate. Therefore, I would like to ask how to set up volume flow rate inlet in Star-CCM+. If there is no direct way to set volume flow rate, is there an alternative method? (2) The outlet is usually set as pressure-outlet. I want to ask if continuity can be guaranteed (I mean the inlet and outlet flow rates are equal). I would appreciate it if someone could help me. Thank you! |
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May 23, 2022, 01:50 |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,674
Rep Power: 66 |
Volumetric flowrates are specified using velocity inlets and very rarely velocity "outlets."
You are solving a momentum balance equation and a mass continuity equation, so your result had better meet continuity criteria or you have another problem. |
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