Learning Forum

[umutt]

Hi guys I want to analyze the impeller with static structure. I have a 3D drawing but I am unsure about the boundary condition.
I only know the momentum created by the pressure exerted by the fluid on the impeller. It is "5396666 n/mm".
What can ı do? Are my boundary conditions right?
This pressure causes a torque of 5396666 n/mm at the center.

Regards

[peteroznewman]

Pressure has the units of N/mm^2 or MPa.
1.0 MPa = 1.0E6 Pa = 1.0E6 N/m^2 = 1.0 N/mm^2
Torque has the units of N-mm.
Please confirm.

[umutt]

Yes, ─▒ know the units. I calculated using parameters. The 0.6 MPa pressure applied to the fin surface causes a torque of 5396666 n/mm at the center.

[peteroznewman]

Torque has the units of N-mm. Don't write this as N/mm.
Another load on the impeller is the rotational velocity. Significant stress can develop if the rotational velocity is high.