首页|Improvement of vertical axis wind turbine performance by using the optimized adaptive flap by the Taguchi method
Improvement of vertical axis wind turbine performance by using the optimized adaptive flap by the Taguchi method
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NETL
NSTL
Taylor & Francis
In light of the growing use of Vertical Axis Wind Turbines (VAWTs) in urbansettings, research is increasingly focusing on passive control methods to enhanceVAWT efficiency. This study aims to refine VAWT performance by optimizing anadvanced turbine design equipped with an adaptive flap on the blade, focus onthe power coefficient (C_P). Using the Taguchi method, the optimization incorporatedfive control factors: flap position (l_d), flap length (l_f), flap angle (θ), flap tiplength (l_t), and angle of the flap tip length (α_(tip)). The study employed an L_(16) (5~4)orthogonal array design. At a 2.62 tip speed ratio (TSR), all models underwentcomputational fluid dynamics (CFD) simulation. The influence of each factor wasassessed using the ANOVA (Analysis of variance), and C_P predictions were madebased on these factors through Regression Analysis (RA). The results revealedoptimal configurations of l_d = 0.65c, l_f = 0.15c, θ = 70°, l_t = 0.06c, and α_(tip) = 8,leading to a CP 74.01% greater than a conventional VAWT. ANOVA ranked factorcontributions as: l_d > l_t > θ > l_f > α_(tip), with l_d contributing 39.58% and α_(tip) only1.34%. Predictions from the RA aligned well with the numerical findings. Inconclusion, the adaptive flap design enhances performance by expanding thewake and amplifying the vortices behind the turbine blade.
NETL
NSTL
Taylor & Francis
