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Old   June 28, 2005, 02:16
Default wind turbine
  #1
Jackie
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Hi all,

I've design some small wind turbine and I like to check it's efficiency. I want to know the rotational speed of the rotor, ( the wind speed velocity at the upstream is known.) However, if i use the multiple ref. frame. the rotational speed of the rotor is need and this is my problem. Could any body give some suggestion, how can i get it as an output from fluent.

Thank you in acvance for all suggestion.

Jackie
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Old   June 28, 2005, 02:49
Default Re: wind turbine
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Luca
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Hi! you could search for a solution with an iterative method. You start with a guess MRF velocity. Then you solve the flow field, find the aerodyamic forces, solve for the angular velocity equation, find a new MRF ans so on...Luca
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Old   June 28, 2005, 02:55
Default Re: wind turbine
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Jackie
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Thanks Luca, I'll try.
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Old   June 28, 2005, 03:20
Default Re: wind turbine
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Luca
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If you take a good staring velocity the procedure shuould converge in few interations (angular velocity should be quite low, so you can start with a good guess point by choosing the known velocity for a wind-turbine like yours).Luca
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