Hi, I'm trying to simulate a centrifugal pump with 0.5m3/s, 2600RPM, and 15bar pressure rise.My boundary conditions are: Inlet:mass flow inlet, Outlet: 15bar static pressure. But I'm not getting the right pressure at the inlet which is supposed to be 1bar instead of same pressure as outlet. Am I putting the right boundary condition at the outlet or inlet? The fluid is water.

Thanks for any help

Hi peter how much is ur mass flow inlet value then there is one help file related to centrifugal pump in fluent did u see that......

With regards, Raghu

Hi Raghu my inlet mass flowrate is 500kg/s or 0.5m3/s. I saw a centrifugal blower tutorial in Fluent tutorial manual but not the pump. May I know which manual pls?

Thanks

Hi i am also mentioining the same tutorial centrifugal blower ok then can u send ur pressure results.....

With regards, Raghu

Is this MRF or sliding mesh. Have you setup the rotating fluid zone correctly?

I'm using MRF. My rotating fluid zone is correct. But should I set the outlet boundary to be 15bar or 1atm pressure for the design pressure rise of 15bar?

Thanks

[abd rahman]

hi,
I'm new to this forum.


I'm also doing MRF.. I manage to run and re-model it in 2-D..
I'm trying to convert the MRF tutorial into 3-D for my centrifugal pump project..
Would some one advise me the best way to do it..

Thnaks