I would like to ask, if someone tried to solve NPSH problems in centrifugal pums in SLDWRK-FL?. I need to get curves for derermination NPSH3. (normally I set conditions „Q“ for inlet and „p“ for outlet – everything work ok.), but for this case, I must set presure as inlet condition (for decreasing the inlet presure) and volume flow condition for outlet and here is the problem. It seems that it works, but if you check the goals then you´l see inlet volume is „for examle 160l/s“ (is the value what I want), but outlet Q is 0,008 l/s and everthing is green and ok by the SW. It doesn´t recognize the volume flow diference between inlet and outlet. I can´t find the way how to solve pump´s model with „p“ as inlet condition. Is possible to solve it in this way at all?
I've never seen inlet volume flow rate be 20000x different. Can you elaboarte on how you're measuing the 2 values? What does mass flow rate tell you? What do the goal convergence plots look like and what stopping criteria are you using?