Work

Numerical analysis of the straight Darrieus wind turbine efficiency

Year: 2023
Type: article
Abstract: This work deals with the CFD analysis of the performance of a three-bladed straight vertical axis wind turbine. Theunsteady two-dimensional (2D) Reynolds-averaged Navier–Stokes (RANS) simulation was carried out the ANSYS/FLUENT solver by using the sliding mesh technique. The efficiency of four turbulence models, namely the one-equation Spalart–Almaras (SA) model, the two-equation SST k-ϵ, Shear Stress Transport (SST) k-ω, and Transitional Shear Stress Transport (SSTT) models were tested with low Reynolds number capabilities.The power curve versus TSR and the torque coefficient were analyzed under the same conditions of wind tunnel experiment of Bravo et al., (2007). The numerical results show that the realizable k-ϵ turbulence model matches well with the experimental results comparatively to other models.
Language: English
Field: Energy
Open Access status: diamond
OpenAlex ID: W7220198764
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