International Journal of Aerospace Engineering

Research Article

Optimum Operational Parameters for Yawed Wind Turbines

Figure 3

Physical system model in case of yawed wind turbine. 𝑊 : initial wind speed; 𝑊 1 : component of 𝑊 normal to the plane of rotation; 𝑊 2 : component of 𝑊 parallel to the plane of rotation; 𝑣 : induced flow; 𝛾 : wind direction angle between the wind and the rotor axis; 𝜓 𝑖 : angle between 𝑊 2 and the 𝑖 th blade; Ω : angular velocity of rotor; 𝑑 𝐹 𝑖 1 : thrust on the element of the 𝑖 th blade, which is normal to the plane of rotation; 𝑑 𝐹 𝑖 2 : drag on the element of the 𝑖 th blade, which is tangential to the circle swept by the 𝑖 th blade.
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