首页|Numerical study of the 3D Savonius turbine under stationary conditions
Numerical study of the 3D Savonius turbine under stationary conditions
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NSTL
Elsevier
? 2022 Elsevier LtdThis paper investigates the influence of turbine size on the aerodynamics and the force-deflection behavior of the Savonius turbine blades built from aluminum alloy during high winds in static conditions. A one-way fluid-structure interaction (FSI) simulation with the Ansys Workbench environment 2019 R3 is used to predict the flow structures and the force response of various turbine diameters (D) from size 1D until 5D at different wind speeds (8 m/s < v < 18 m/s) and bucket angles (0°–180°). The coefficient of static torque (Cts) from the fluid simulation is validated against experimental work in the literature with average errors of less than 9%. The static torque, blade deformation, stress-induced, and fatigue response are studied extensively herein. This investigation reveals that the induced stress and blade deformations increase proportionally with turbine size and wind speed but even in the worst case scenario the outcome is not even 40% of the failure limit. The existence of endplates reduces the deformation and the alternating stress of the blades (about five times) and also improve the static torque performance by about 30% on average.
NSTL
Elsevier
