The Best equation.

Kamilva · May 26, 2016, 12:48

Hi,
Can anyone suggest the best solver equation for solving CFD simulation for Centrifugal pump. This case is highly turbulent and rotating one.

lcarasik · May 26, 2016, 22:39

Quote:

Originally Posted by Kamilva

Hi,
Can anyone suggest the best solver equation for solving CFD simulation for Centrifugal pump. This case is highly turbulent and rotating one.

You are not likely to find an answer to this question.

Kamilva · May 27, 2016, 01:19

Hi,
And thanks....
I just want to know whether I should use k-epsilon or k-omega... To get fine results.

nn2e11 · May 27, 2016, 03:43

Hi,

as far as I know, the k-epsilon model is good for small pressure differentials.
The other one I think will suit you better as it is widely used to simulate turbulent flows.

Jiricbeng · May 27, 2016, 05:39

Navier Stokes equation for compressible flow including cavitation is the best equation. Try it :-).

Milsey · June 6, 2016, 01:39

K Omega SST is probably best for this situation as your needing to accurately capture currents around the blades. Also, make sure you make use of the inbuilt wall functions of SST if you do use it by having a good enough inflation layer around your walls and blades.

May 26, 2016, 12:48	The Best equation.	#1
Kamilva New Member Kamilva Join Date: May 2016 Posts: 10 Rep Power: 9	Hi, Can anyone suggest the best solver equation for solving CFD simulation for Centrifugal pump. This case is highly turbulent and rotating one.

May 27, 2016, 05:39		#5
Jiricbeng Senior Member Jiri Join Date: Mar 2014 Posts: 218 Rep Power: 13	Navier Stokes equation for compressible flow including cavitation is the best equation. Try it :-). lcarasik likes this.

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May 27, 2016, 01:19		#3
Kamilva New Member Kamilva Join Date: May 2016 Posts: 10 Rep Power: 9	Hi, And thanks.... I just want to know whether I should use k-epsilon or k-omega... To get fine results.

May 27, 2016, 03:43		#4
nn2e11 New Member not_real_name Join Date: May 2016 Posts: 2 Rep Power: 0	Hi, as far as I know, the k-epsilon model is good for small pressure differentials. The other one I think will suit you better as it is widely used to simulate turbulent flows.

June 6, 2016, 01:39		#6
Milsey New Member Millen Join Date: Jan 2016 Posts: 7 Rep Power: 10	K Omega SST is probably best for this situation as your needing to accurately capture currents around the blades. Also, make sure you make use of the inbuilt wall functions of SST if you do use it by having a good enough inflation layer around your walls and blades.