Investigation of a cross-flow wind turbine with frontal deflector

Abstract The publication presents the results of the study on vertical cross-flow wind turbine with frontal arc-shaped and flat deflectors that increase the turbine’s power coefficient by up to 0.08. The optimal development angle of the arc-shaped deflector has been determined. The obtained results are compared with those of numerical and physical studies published in various reputable journals. Relevant fields of application are discussed. The research is carried out at test bench No. 7C (wind turbines) in the Laboratory of Hydropower and Hydraulic Turbomachinery at the Technical University of Sofia.