Vertical axis wind turbine Part 1

- May 17, 2024 at 2:31 pm
  
  SURAJGOUDA POLICEPATIL
  Subscriber
  
  In vertical axis wind turbine part 1 tutorial, its said that if we enter an exact rotational velocity of the turbine then the coeff of moment (cm) curve would be zero.
  The entered speed in tutorial is 40m/s and we get some repulsoins in the cm graph. In lesson 7 its said that if 80m/s is entered then we would get a cm curve as 0 (a horizontal line in the graph). I have tried entering the 80m/s value, even then I am not getting cm graph as zero. Still I am getting repulsions in the graph.
  
  Kindly suggest me about the issue.
- May 17, 2024 at 2:39 pm
  
  Rob
  Forum Moderator
  
  Where does it say 80m/s in that text?
- May 28, 2024 at 11:21 am
  
  SURAJGOUDA POLICEPATIL
  Subscriber
  
  Sorry the units are in rpm, not m/s. If I enter 40rpm Im getting fluctuations as per the tutorial. But if I enter 80rpm as suggested in the text in last sentence, Im not getting cm curve as zero.
- May 31, 2024 at 3:08 pm
  
  Rob
  Forum Moderator
  
  It does say "about", so how far off are you from a zero value?