METHODOLOGY

Wind turbine model

The wind turbine model used in this study is the NREL PHASE VI wind turbine [21]. It is a wind turbine designed by NREL (National Renewable Energy Laboratory). It uses S809 airfoil from root to tip.it is also twisted along the span. The cross-sections of airfoil along the blade length which is accompanied by chord and twist distributions, are shown in Figure 1 and figure 2. The 3d geometry model is established using Ansys Fluent [22] is presented in figure 3 and the corresponding airfoil is shown in figure 4.Technical parameters of the blade is shown in table 1
Table 1 main parameters of NREL PHASE VI Wind turbine