![]() ![]() T he proposed design resulted in experimental and numerical Cp = 0.113 and Cp = 0.127 respectively at 7 m/s and λ = 0.7. Result shows that the peak Cm is at λ = 0.55 for experimental and CFD is Cm = 0.238 and Cm = 0.253 respectively. It is found that integration of barnacle geometries on the surface of the blade has affected the performance of the rotor. The proposed bio-hybridized design consists of a blade mainframe curve inspired by nautilus shell and barnacle on the blade surface. The design approach framework comprises three main elements, namely image processing, geometrical analysis and bio-hybridization. Hence, this paper presents a proposed nature-inspired design approach for the development of drag-driven wind turbine blade morphology. The main governing factor that influences the performance of the rotor is the blade morphology. Although drag driven wind turbine is regarded as an efficient rotor for low wind speed regions, design reconfiguration is a continuous process in order to improve the performance of the rotor.
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