Flow field simulation study on the diffuser of concentrated wind energy device

To enhance the efficiency of concentrated wind energy turbine, the geometry model and mesh model were built by the three-dimensional modeling software with the concentrated wind energy device as the research object. Then numerical simulations were developed to look at the new geometry, and refinement of it led to greater power augmentation, results of which were reasonably verified. In this study, a total of 13 geometry models were tested and the results suggest that one optimal variant ensures a maximum internal flow velocity increase by 14.2% and another variant ensures a velocity gradient decrease by up to 36.7%.