Pump sump CFD analysis

peter.pan · May 19, 2014, 10:12

Hi,

I am simulating the flow inside a pump sump using FLUENT. The pump discharge at outlets are specified and its critical for my simulation to maintain that.

I wanted to know if giving it a specified target mass flow rate would help? I have calculated the mass flow corresponding to the discharge.

Look forward to your thoughts.

Best,

vijaymali · May 19, 2014, 12:25

Hi Peetak,

Using Target Mass Flow Rate at pressure outlet boundary should be OK. Make sure that the static pressure that you are specifying and static pressure required to achieve are not to far from each other. Else, you might get some convergence issue.

To do this, you can do the simulation without specifying the target mass flow rate value. See what is the mass flow rate you are getting. If its too far for target flow rate, change the pressure value. Go close to the required values and the activate target mass flow rate.

Could you please share a schematic diagram of problem you want to solve. I just want to understand what objective you want to achieve and what boundary conditions you are using ?

Thanks
Vijay

May 19, 2014, 10:12	Pump sump CFD analysis	#1
peter.pan New Member Peetak Mitra Join Date: Jul 2012 Posts: 19 Rep Power: 14	Hi, I am simulating the flow inside a pump sump using FLUENT. The pump discharge at outlets are specified and its critical for my simulation to maintain that. I wanted to know if giving it a specified target mass flow rate would help? I have calculated the mass flow corresponding to the discharge. Look forward to your thoughts. Best,

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pump Cavitation Analysis in ANSYS CFX	techCAE	CFX	6	July 3, 2013 07:37
Future CFD Research	Jas	Main CFD Forum	10	March 30, 2013 13:26
CFD Package for Water Pump Design !!!	John Sheng	Main CFD Forum	7	September 4, 2001 10:29
part-time-cfd	Michael	Main CFD Forum	6	February 2, 2000 13:01
CFD Analysis on Shock/Boundary Layer Interacton'-HELP	Mujahid S. Suhaeb	Main CFD Forum	8	December 1, 1999 18:14

May 19, 2014, 12:25		#2
vijaymali New Member Vijay Mali Join Date: Apr 2014 Location: India Posts: 18 Rep Power: 12	Hi Peetak, Using Target Mass Flow Rate at pressure outlet boundary should be OK. Make sure that the static pressure that you are specifying and static pressure required to achieve are not to far from each other. Else, you might get some convergence issue. To do this, you can do the simulation without specifying the target mass flow rate value. See what is the mass flow rate you are getting. If its too far for target flow rate, change the pressure value. Go close to the required values and the activate target mass flow rate. Could you please share a schematic diagram of problem you want to solve. I just want to understand what objective you want to achieve and what boundary conditions you are using ? Thanks Vijay