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VAWT Steady or Transient??

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Old   August 8, 2013, 16:38
Default VAWT Steady or Transient??
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I'm simulating a Vertical axis wind turbine (VAWT) and I wonder if I should use steady or transient time to calculate the Initial Torque Coefficient .
When the VAWT is in motion (w=10 rad/s) I have no doubt, the time should be transient. However, to calculate the Initial Torque Coefficient I define(w=0 rad/s) and here is where I have doubts. I performed the simulation with steady and transient and the results are very different.
Which option is most suitable for the Initial Torque Coefficient, Steady or Transient?
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