HOW to calculate the NPSHR of centrifugal pump

water pump · August 2, 2010, 10:49

Hi every one

I have calculated NPSHR for 20 sets centrifugal pumps by using cfx 12, but the predicted results are not satisfied when compared with experimental value.
I want to kown if anyone have calculated the NPSHR of centrifugal pump.how about the predicted results?

and, how to setup the cfx pre for predicting NPSHR?

THANK YOU very much.

water pump

ghorrocks · August 2, 2010, 19:40

Have you read the best practises guide for pumps? It is installed as part of the documentation. It has a lot of good hints on pump simulations.

water pump · August 2, 2010, 20:59

HI ghorrocks

thank you for your reply.
I have read the documents about the pump, the predicted head and efficiency of centrifugal pumps are well,but the NPSHr of pumps are bad.so I want to kown the the others predicted results and set process in cfx pre.

wang y

August 2, 2010, 10:49	HOW to calculate the NPSHR of centrifugal pump	#1
water pump New Member wang y Join Date: Aug 2010 Posts: 2 Rep Power: 0	Hi every one I have calculated NPSHR for 20 sets centrifugal pumps by using cfx 12, but the predicted results are not satisfied when compared with experimental value. I want to kown if anyone have calculated the NPSHR of centrifugal pump.how about the predicted results? and, how to setup the cfx pre for predicting NPSHR? THANK YOU very much. water pump

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
release of the ERCOFTAC centrifugal pump - Fourth OpenFOAM Workshop	olivier	OpenFOAM	8	October 29, 2018 08:49
Centrifugal Pump and Turbulence Model	Michiel	CFX	12	January 25, 2010 04:20
using CFX to calculate NPSHR for pump	sandy	CFX	0	March 19, 2008 13:52
Torque calculation in centrifugal pump	novice	Siemens	0	August 11, 2004 06:47
stator-rotor interaction in the centrifugal pump	G.H.Lee	Main CFD Forum	4	May 25, 1999 08:33

August 2, 2010, 19:40		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	Have you read the best practises guide for pumps? It is installed as part of the documentation. It has a lot of good hints on pump simulations.

August 2, 2010, 20:59		#3
water pump New Member wang y Join Date: Aug 2010 Posts: 2 Rep Power: 0	HI ghorrocks thank you for your reply. I have read the documents about the pump, the predicted head and efficiency of centrifugal pumps are well,but the NPSHr of pumps are bad.so I want to kown the the others predicted results and set process in cfx pre. wang y