Wind load modeling considering blade rotation

[Jason.Jonkman]

Dear @Zong.Linyang,

Similar questions were asked and discussed in the following forum topics:

Oscillation in local axial wind component and AOA

Hi In my FAST simulations I got some unexpected oscillations in Axial local wind component (experienced by blade element) and AOA under following situation: Downwind three bladed wind turbine Test03 of FAST (with blade, tower degrees of freedom are true. Even if I make them False still getting the oscillations) Used full field turbulence wind generated with TurbSim i.e., the wind file 42m_12m/s.wind Tower velocity deficit zero. I get an oscillating response with the frequency of the rotor re…

3P frequency experimental vs simulation

Hi all, I have to make a comparison between experimental measurements from an accelerometer and Fast simulation.The wind tunnel- tested turbine is a small turbine( blade length is 1meter).The accelerometer measures the acceleration in FA direction of the wind turbine tower(placed near tower-top) subjected to a costant 6 m/s wind velocity(in Fast I used a HH file to simulate it). Doing an FFT of the acceleration signal I see that the signal has really an high 3P content while FFT from Fast si…

Best regards,