3D simulation of the vertical axis wind turbines

Computational fluid dynamics (CFD) is appropriate method to analyse aerodynamic flow in wind turbine. This is why we choose this method to compare static torque characteristics of two vertical axis wind turbines (VAWT), one with straight blade and the other one with helical blade. Analyses are realized by use of Ansys CFX software. At first, three-dimensional (3D) simulations of straight blade turbine with different meshes are carried out. To determine how much mesh parameters affect the accuracy of result and computational time. Then we perform 3D simulations of helical blade turbine and compare its results with straight blade one.