Good morning fellow Flow Sim users!
I am working with fan curves for the first time, and I'm a little confused about how the software handles them. I simulated an air manifold with an external outlet fan. When I look at the surface parameters of the face that I assigned the fan to, I get these data:
|Local Parameter||Minimum||Maximum||Average||Bulk Average||Surface Area [in^2]|
|Pressure [in H(2)O]||280.11||289.56||285.97||285.97||2.1425|
|Density (Fluid) [kg/m^3]||0.83||0.86||0.85||0.85||2.1425|
|Integral Parameter||Value||X-component||Y-component||Z-component||Surface Area [in^2]|
|Mass Flow Rate [lb/s]||-0.1263||2.1425|
|Volume Flow Rate [ft^3/min]||-142.8205||2.1425|
However, my fan curve looks like this:
A flow rate of 143 CFM is right around the 172"WG mark on my curve, but according to the software the pressure difference at my outlet fan is 407-286 = 121"WG. So what gives? I should be getting either a lot of more or a much higher pressure difference.