3D analysis of vertical axis wind turbine with enclosure

Appropriate method to analyse aerodynamic flow in wind turbine is Computational fluid dynamics (CFD). This is the reason why we choose this method to analyse the effect of turbine enclosure on static torque characteristics of vertical axis wind turbine (VAWT) with straight blade. Analyses are realized by use of Ansys CFX software. At first, we carried out simulations of turbine without an enclosure. Next step was to find out a dimensions of the enclosure that increase the torque of the turbine. From the analysis results we selected the enclosure that had overall highest increase of average torque over the turbine without any enclosure at wind speed 5 and 10 m/s. Analysis at two wind speeds are performed for a reason to find out how the effect of the enclosure on turbine torque changes.