Learning Forum

[pwn85]

I have a centrifugal pump that i want to know how much airflow it is flowing at a given speed.

the pump is transporting water and i dont know the inlet and outlet pressure of the pump but i only know the rpm of the impeller (2920rpm) on z axis global. 

i'm assuming the inlet of the pump is to 0.2 Pa (Total Pressure Stable) and the outlet is to 0.4 Pa (Average Static Pressure).

The domain model pressure is at 1 atm. 

After running CFX, i noticed there is a lot of turbulence at the inlet (20 m/s) and the outlet is practically 0.6 m/s of flow. 

what did i do wrong here? Im a beginner and would appreciate any help.

Please Guide me if I have done anything wrong or is this the wrong step to do it or correct me. I want to know how to measure the airflow at the outlet and would like to reiterate the design by changing the speed of the impeller and knowing how it affects the outlet airflow 

[RK]

Hello, 

How did you calculate the inlet and outlet pressure?

[pwn85]

Hello Rahul, is there a proper calculation to the inlet and outlet pressure? I obtain these number from the pressure gauge at the meter.