Varying VAWT Cluster Configuration and the Effect on Individual Rotor and Overall Cluster Performance

The effect of separation distance between turbines on overall cluster performance were simulated using computational fluid dynamics software and we found that at a equivalent to two rotors, there was an improvement +8.06% in the average compared single, isolated turbine. A very small noted 12 rotor diameters. performances three individual pyramid- inverted pyramid-shaped vertical axis wind turbine clustered farm configurations with varying oblique angles fixed spacing diameters also investigated. design experiment involves simulation test cases from 15° 165° interval allowed rotate through 18 full rotations. results show left right increase as angle respect streamline increases, exception angle. center turbine, meanwhile, attained its maximum 45° be configuration where oriented line (i.e., side by side) perpendicular free-stream velocity, exhibiting 9.78% Other array improvements ranging 6.58% 9.57% except extreme 165°, decrease due blockage induced turbines, respectively.