Flow results do not correspond to input fan curve
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.
