On power augmentation of VAWT in the wake of a bluff body

Abstract

A numerical investigation of the performance of an H-Darrieus vertical axis wind turbine (VAWT) in the presence of a bluff body is performed. In particular, the impact of vortices shed by bluff bodies on the turbine performance is investigated. The deflected wind from the buildings possess wind velocity that can be up to 12% higher than the free stream wind velocity in case of a single building structure. The power enhancement of the VAWTs deployed downstream of a bluff body is analyzed by changing the location of the turbine in the wake of the bluff body and an optimal turbine mounting position is found.