COMPREHENSIVE ANALYSIS OF DIFFERENT WINGLET MODELS TO ENHANCE THE WINDMILL PERFORMANCE

摘要

Renewable energy has become the leading resource as eco-friendly energy. The recent research on wind energy explores the opportunity of increasing the effectiveness of horizontal axis wind turbine and also reduction of lift-induced drag by adding winglets at the tip of the turbine blade. This paper describes the influence of different model winglets attached to wind mill turbine blade. The performance of winglets attached blades in wind turbine was investigated in ANSYS CFD to evaluate the power variation on low speed wind mill. This virtual investigation was conducted for three different winglets individually. The virtual analysis showed that the blended winglet was the best winglet compared to the other two turbine blades design. The numerical investigation revealed that adding a blended winglet to the base line turbine blade increased the output power by 4 watts resulting in overall increase in power by 2% to 3% output and power coefficient.