CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   FLUENT (https://www.cfd-online.com/Forums/fluent/)
-   -   wind turbine (https://www.cfd-online.com/Forums/fluent/37079-wind-turbine.html)

Jackie June 28, 2005 02:16

wind turbine
 
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

Luca June 28, 2005 02:49

Re: wind turbine
 
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

Jackie June 28, 2005 02:55

Re: wind turbine
 
Thanks Luca, I'll try.

Luca June 28, 2005 03:20

Re: wind turbine
 
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


All times are GMT -4. The time now is 10:27.