Research and development of a simple straight-flow wind tunnel test equipment for vertical axis wind turbines

As a renewable energy, wind energy has attracted great attention all over the world. To study the aerodynamic performance of new vertical axis wind energy conversion systems, a type of simple straight-flow wind tunnel test equipment for vertical axis wind turbines has been developed. The performance of the power section, diffusing section, rectification section and the contraction section of the wind tunnel is analyzed and calculated, and an integrated test bed is established, with which, the performance of a new wind wheel is tested and analyzed. The results show that the test equipment is simple structured, convenient to manufactured, reliable to operate, and able to get a stepless speed regulation of the wind speed with 0.5-15m/s, which also provides corresponding design parameters for the permanent magnetic generators matched.