|March 20, 2015, 03:21||
Join Date: Jan 2015
Posts: 6Rep Power: 4
I am simulating flow in a centrifugal pump using MRF in fluent. But I am getting almost constant or rather increasing total head with increase in flow rate at constant RPM. However with increase in speed the total head increases i.e. I am getting a almost constant value at a particular speed irrespective of the flow rate.
I have tried all the BC combinations, I can think off. I have tried
- mass flow inlet and pressure outlet
- mass flow inlet and outflow
- pressure inlet ad pressure outlet
But the results are coming the same.
Can anyone shed some light on this problem.
Thanks a lot in advance.
|March 31, 2016, 06:17||
Join Date: Apr 2013
Posts: 5Rep Power: 5
I have not used fluent as of now but have some good experience in CFX for centrifugal pump simulation
check below parameters.
Inlet : Total Pressure (Atmospheric)
Outlet : Mass flow rate (kg/sec)
Rotating domain ( Impeller fluid region)
Stationary domain ( Casing)
Rotating to stationary with GGI connection with Frozen rotor interface
Check the direction of rotation and rotational axis of impeller.
These data may help u to cross check
thanks with Regards,
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