Question

A wind turbine is located 1000 m from the seashore and exposed to winds at 30 km/hr. The blades of the turbine are 20 m in length. In order to avoid lower wind velocity near the ground, the turbine tower is placed high enough so that the blades are at least 3 m above the boundary layer. What should be the height of the axis of the turbine? Use air properties at 10 C, and assume the boundary layer is turbulent from the leading edge 1.
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Answer #1

Given dato velocit of ar: 30 km/hr . зох s , 8 8.33 mec thicknec Jormula to caleutate boundary layer thicknec, nolds no rlg t

-叶乙ㄈ 2 97 Hence, Ruigheo aic of munnes it 169-61m

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