Aerodynamic Design and Wind Tunnel Tests of Novel Blade Shapes for the Savonius Wind Rotor
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Date
2024
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Abstract
Wind turbines are increasingly used worldwide to generate electricity without contributing to global warming. The Savonius wind rotor is widely known for small-scale power generation devices. However, the Savonius rotor, a simple type of vertical-axis wind turbine, suffers from low efficiency due to a high negative torque from the returning blade. To address this issue, extensive research has been done on enhancing various design parameters, geometric parameters, implementing augmentation techniques and other aspects. However, there is always scope for further investigation to contribute better. In view of this, the present study aims at generating blade profile through optimization techniques (OTs). The optimal blade profile is developed considering the power coefficient as an output function using the optimization techniques, viz., simplex search method (SSM), non-dominated sorting genetic algorithm-II (NSGA-II). Moreover, a novel parabolic blade profile is developed analytically considering the sectional cut angle () of the parabola as a design parameter.
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Supervisor: Saha, Ujjwal K