Fluid and Structure Analysis of Wind Turbine Blade with Winglet

One of the succeeded methods to enhance performance horizontal axis wind turbine (HAWT) is an attaching a winglet blades tip. The current paper study effect four key parameters that are used describe on which height H%R, cant angle θ, twist β, and taper ratio Λ. A five design cases for each geometric were numerically investigated using computational fluid dynamics (CFD) by ANSYS18.1 software, totally give twenty different response. validation present model with reference experimental results successfully carried out maximum inconsistency 3%. mathematical correlation was established from CFD being in predicting power parameters. From response, H θ greater than β Λ power. epoxy E-glass unidirectional material selected investigate blade structure. increases 2% 30% due adding blade. increment corresponds case W6 H= 8%R, =30°, = 3°, 0.8. Form structural analysis addition changes stress distribution over blade, increasing stresses at root, achieved transfer deformation tip