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Torque calculation with fluent

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Old   October 21, 2008, 04:30
Default Torque calculation with fluent
  #1
s wang
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Hello all,

I am currently implementing Fluent to simulate the wind turbine.I want to calculate the torque generated by the blades.Could anyone pls give me some advice on the calculating of torque?

Advanced thanks.

S.Wang
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Old   October 21, 2008, 04:47
Default Re: Torque calculation with fluent
  #2
sushil
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Hi Wang,

I am also trying to simulate the wind turbine. could you please tell me what boundary conditions you are using and whether you are simulating with dynamic mesh or with Axi-symmetric boundary conditions?

Please help.

Thanks in advance.

Regards, Sushil.

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Old   October 21, 2008, 04:55
Default Re: Torque calculation with fluent
  #3
mAx
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report/forces here you can compute moments on your blades
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Old   October 21, 2008, 04:59
Default Re: Torque calculation with fluent
  #4
s wang
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Hi Sushil,

Thanks for your email. Actually, my interests focus on the Vertical axis wind turbine. I guess you are talking on the Horizontal axis wind turbine, right? In my opinion, we could use the moving mesh or moving reference frame instead of dynamic mesh.

Cheers,

Wang
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Old   October 21, 2008, 05:03
Default Re: Torque calculation with fluent
  #5
s wang
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Dear mAx,

Thank you for your email.

Yes, I could use the menu you mentioned to calculate torque. However, what if my simulation is unsteady and needs to calculate the moment with time?

Regards,

Wang
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Old   October 21, 2008, 05:32
Default Re: Torque calculation with fluent
  #6
mAx
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then you can write your torque in a file at each time step check the box "Write...", then you need a udf for writing your results at each time step. perhaps, there is another way, but this one works

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Old   October 21, 2008, 05:34
Default Re: Torque calculation with fluent
  #7
s wang
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Dear mAx,

Thanks for your reply. I will try your advice.

Best regards,

Shengyi Wang
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Old   October 22, 2008, 00:07
Default Re: Torque calculation with fluent
  #8
sushil
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Hi Wang,

Thanks for the inputs. Yes I am working on horizontal axis turbine. What BC's you are using..?

Have a nice time.

Regards, Sushil.
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Old   October 22, 2008, 07:34
Default Re: Torque calculation with fluent
  #9
s wang
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Hi Sushil,

In my case, I prefer the pressure-far-field as the inlet BC. By the way, I am not performing the 2D simulations and my domain is a parabola.

Pls give some advice if possible.

cheers,

Shengyi, Wang

Leeds

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Old   October 22, 2008, 07:37
Default Re: Torque calculation with fluent
  #10
s wang
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Sorry, there is a mistake in the above message.

It should be 'I am now performing a 2D simulation.', not 'I am not...'

Regards, Shengyi
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Old   January 14, 2013, 10:37
Default how to calclutate torue in fluent
  #11
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bhushan patil
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p.bhushan2727@gmail.com is on a distinguished road
dear frnds plz tell me hoe to calculate torque in fluent i am working on vertical axis wind trubine h shaped daarruis type so for that concern ia m doing 2d simulations unsteday for that i am giving cl ,cd cm moniters on blades so will plz tell me how to find out direct torque in flunt or how to co relate it 2 moment ia m aatching paper and some images of my mesh so it will clear u piture of problem
plz tell me it needs udf to find torue on blades
Attached Images
File Type: jpg outer domin with main mesh.jpg (98.1 KB, 28 views)
File Type: jpg main mesh.jpg (97.3 KB, 26 views)
File Type: jpg inner circle in outer domain.jpg (50.9 KB, 24 views)
File Type: jpg inner circle with blades.jpg (83.6 KB, 29 views)
File Type: jpg outer domin without inner circle.jpg (98.3 KB, 23 views)
p.bhushan2727@gmail.com is offline   Reply With Quote

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