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How to define hydraulic or total efficiency in a centrifugal pump? |
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February 28, 2012, 15:53 |
How to define hydraulic or total efficiency in a centrifugal pump?
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#1 |
Member
Join Date: Aug 2009
Posts: 67
Rep Power: 17 |
Hi guys,
I simulate a 3d centrifugal pump using Fluent. How can i define the hydraulic efficiency? Or the total efficiency? The moment of the pump can be calculated? Thanks |
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February 28, 2012, 17:24 |
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#2 |
Member
Join Date: Aug 2009
Posts: 67
Rep Power: 17 |
Total pump efficiency = ρgQH/M2πn
ρ=water density g=gravitational accelaration Q=flow rate H=total head M=moment π=3.14 n=rotational speed The moment can be calculated Report-> Forces-> Moments? I chose moment center and the zone of the rotating impeller. Moment center is the center of the impeller? The result is the total net moment? Fluent prints 3 values of the moment x, y, z. What can i do to obtain the final value of the moment in order to calculate pump efficiency? I just sum the three moments taking into consideration the positive and negatie signs? Lastly, i use the MRF model. Last edited by spk; February 28, 2012 at 17:46. |
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March 4, 2012, 05:14 |
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#3 |
New Member
a.farid
Join Date: Feb 2012
Posts: 14
Rep Power: 14 |
hi can yo tell me about the meshing tool
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March 4, 2012, 05:18 |
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#4 |
New Member
a.farid
Join Date: Feb 2012
Posts: 14
Rep Power: 14 |
hi farid what is your meshing program
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March 5, 2012, 09:40 |
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#5 |
Member
Join Date: Aug 2009
Posts: 67
Rep Power: 17 |
Hi,
I use Gambit. |
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March 6, 2012, 02:54 |
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#6 |
New Member
a.farid
Join Date: Feb 2012
Posts: 14
Rep Power: 14 |
may i have a tutorial how to model a centrifugal pump with three zones inlet, outlet and impeller
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March 16, 2012, 07:32 |
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#7 |
Member
Join Date: Aug 2009
Posts: 67
Rep Power: 17 |
Any ideas?
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March 17, 2012, 04:53 |
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#8 |
New Member
a.farid
Join Date: Feb 2012
Posts: 14
Rep Power: 14 |
Hi,
I need any tutorial to start meshing a centrifugal pump by gambit |
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March 17, 2012, 09:27 |
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#9 |
Member
Join Date: Aug 2009
Posts: 67
Rep Power: 17 |
I don't have any tutorial in order to mesh a centrifugal pump! You can read the fluent tutorials about meshing in general!
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March 18, 2012, 01:57 |
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#10 |
New Member
a.farid
Join Date: Feb 2012
Posts: 14
Rep Power: 14 |
Hi,
thank you for help |
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March 28, 2012, 20:03 |
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#11 |
Member
Join Date: Aug 2009
Posts: 67
Rep Power: 17 |
Any ideas please!!!
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March 29, 2012, 06:36 |
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#12 |
New Member
a.farid
Join Date: Feb 2012
Posts: 14
Rep Power: 14 |
Hi,
send your e mail to me and i will send you a paper apout how to define efficiency |
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