I'm diving into SW Flow Simulation, and created simple radial fan model as a first project. I've made basic calculations,.. and
I need your help Looks like I have an error in model, calculations or flow settings.
I've got the efficiency of my backward curved impeller as of ~25% ? A lot of tutorials says that it should be 80+%.
Besides the overall efficiency, very important for this study is intake pressure (suction power, SG Av Dynamic Pressure) - it is also very low for such type of impeller
Here is .zip with the assembly, parts and sim. results.
Here is the screenshot+my calculations (are they right?)
Can you point on my fault?
Thanks in advance for any help !!