Performance analysis of low Reynolds number vertical axis wind turbines using low-fidelity and mid-fidelity methods and wind conditions in the city of Nottingham

Shubham, Shubham; Naik, Kevin; Sachar, Shivangi; Ianakiev, Anton

doi:10.1016/j.energy.2023.127904

Cited by 9 publications

(1 citation statement)

References 38 publications

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“…Notably, when the diameter of the built-in structure is reduced to 50% of the rotor diameter, the resulting power coefficient (C p ) loss is less than 20% and this relationship is not linear within that 50% range. The study of Shubham et al [22] involves a comparison of two analytical aerodynamic techniques: the low-fidelity Double Multiple Streamtube method and the mid-fidelity Lifting Line Free Vortex Wake method. Tong et al's [23] findings in this investigation have established the importance of a dimensionless parameter called the RCC, which represents the ratio of the airfoil chord length to the rotor circumference.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Analysis of a Novel Cycloid-Type Rotor versus S-Type Rotor for Vertical-Axis Wind Turbine

González-Durán,

Olivares-Ramírez,

Luján-Vega

et al. 2024

Technologies

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The performance of a new vertical-axis wind turbine rotor based on the mathematical equation of the cycloid is analyzed and compared through simulation and experimental testing against a semicircular or S-type rotor, which is widely used. The study examines three cases: equalizing the diameter, chord length and the area under the curve. Computational Fluid Dynamics (CFD) was used to simulate these cases and evaluate moment, angular velocity and power. Experimental validation was carried out in a wind tunnel that was designed and optimized with the support of CFD. The rotors for all three cases were 3D printed in resin to analyze their experimental performance as a function of wind speed. The moment and Maximum Power Point (MPP) were determined in each case. The simulation results indicate that the cycloid-type rotor outperforms the semicircular or S-type rotor by 15%. Additionally, experimental evidence confirms that the cycloid-type rotor performs better in all three cases. In the MPP analysis, the cycloid-type rotor achieved an efficiency of 10.8% which was 38% better than the S-type rotor.

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Section: Introductionmentioning

confidence: 99%