Influence of the Solidity Ratio on the Small Wind Turbine Aerodynamics

Increasing popularity of individualised electricity generation from wind by prosumers creates a strong demand for profitable and highly efficient small turbines. This paper investigates the influence rotor blade solidity parameter on device efficiency in hope determining its optimal value as part development process GUST turbine. The study involved experimental analysis tunnel numerical simulations performed QBlade software. Different solidities were achieved alteration (1) number blades (2) chord distribution along span. increase resulted augmentation aerodynamic both approaches. elongation 33% 3-bladed bigger power coefficient increment than addition 4 th with original distribution. Even though was same, better, possibly due to lower form drag. results emphasize importance optimization during turbine may significantly overall output.