Abstract
In this study, the effect of the elliptical shape on the modified Savonius wind turbine, consisting of the original semicircular profile and an additional elliptical part, is investigated. The geometry configuration of this elliptical profile is determined by the non-dimension parameter R* and the angle α. The effect of the parameters on the rotor performance is numerically analyzed using the commercial software Ansys Fluent 2020R2. As a result, both R* and α plays an important role in the performance of the rotor. In that, the rotor shows the best efficiency at R* = 0.55 and α = 90°. For which the power coefficient improves up to 99.1% compared to Blackwell’s conventional rotor configuration at a tip speed ratio (TSR) 1.4 before decreasing at a higher TSRs.
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Duc, M., Le, A.D. (2022). Effect of the Elliptical Shape on the Performance of the Modified Savonius Wind Turbine. In: Le, AT., Pham, VS., Le, MQ., Pham, HL. (eds) The AUN/SEED-Net Joint Regional Conference in Transportation, Energy, and Mechanical Manufacturing Engineering. RCTEMME 2021. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-1968-8_32
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