Aerodynamic Performance Optimization of H-Type Vertical-Axis Wind Turbine Based on CFD and Taguchi Method
The optimization of wind turbine structure is of paramount importance for enhancing energy conversion efficiency.To explore the influence of four structural parameters—number of blades(n),radius(R),aspect ratio(μ),and installation angle(β)—on the aerodynamic performance of vertical-axis wind turbines at a low cost,an orthogonal experimental design based on the Taguchi method and a modified additive model were employed.This approach determined the optimal design parameters for maximizing the wind turbine's power output and conducted CFD numerical validation studies.The results indicate that the combination of the Taguchi method and the modified additive model can accurately determine the optimal parameter combination and assess the extent of influence each factor has on aerodynamic performance.The analysis indicates that the wind turbine exhibits the strongest performance at n=3,R=2.5 m,μ=8,β=-3°,and the weakest performance at n=5,R=1.0 m,μ=5,β=0°.The average power coefficient of the optimal configuration is 66.12%greater than that of the worst configuration.Furthermore,the magnitude of the influence of each factor on the efficiency of the vertical axis wind turbine is R>n>β>μ.
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