CFD study of a vertical axis counter-rotating wind turbine

摘要

A computational fluid dynamics (CFD) study was carried out to characterize the main forces in a Savonius vertical axis counter-rotating wind turbine, the rotors are 73 mm in diameter with an end plate of 80.3 mm of diameter and a total height of 60.24 mm. The simulations were done in Ansys Fluent? using a turbulence κ-ω SST model. According to the obtained results, the power coefficient of the rotors have an average difference of 3.5% between them and their maximum value was reached at Tip Speed Ratio of 0.8.