2023年10月15日 · In the current study, the aerodynamic characteristics of a bent winglet and the basic winglet are compared and studied based on the NREL Phase VI wind turbine using the CFD method. The bent winglet is constructed by bending the middle height of the optimal winglet and the bending parameter is optimized to obtain the best power improvement.

2019年11月15日 · The use of winglet improved the wind turbine performance. Their results showed that, for the blade with winglet, both thrust and power coefficients were increased by 15.0% and 8.2%, respectively. Devit [5] investigated the design and analysis of winglets for wind turbine rotor blade with varying the sweep and cant angles of the attached ...

2020年9月14日 · Should wind farm operators install winglets on wind turbine blades? Is this a worthwhile retrofit to improve efficiency and power output? In this article, we’ll discuss the aerodynamic properties of wind turbine blades and whether or not winglets make financial sense as an upgrade on wind farms.

2024年12月23日 · Winglets are intended to reduce the strength of the tip vortices, thereby reducing induced drag, increasing torque, and, ultimately, improving the power output of the wind turbines. In this study, computational fluid dynamics (CFD) simulations were utilized to assess the aerodynamic performance of wind turbine blades with and without winglets ...

2024年4月1日 · In this study, we propose an efficient turbine retrofit based on the use of bio-inspired winglets to increase the power production of a wind turbine. To assess the capability of the modified wingtips, we perform the steady-state Reynolds Averaged Navier–Stokes simulations of a DTU 10 MW wind turbine using ANSYS Fluent.

2020年1月21日 · Winglets (WLs) have recently been used to improve the performance of horizontal axis wind turbine (HAWT). The WL geometry is a key parameter for diverging blade tip vortices away from turbine blades and reducing induced drag. The present study focuses on the effect of winglet height (H) and toe angle (αw) on the turbine performance.

A unique design philosophy for retrofitting winglets on existing wind turbines is presented. These retrofit winglets offer an increase in power produced without the need for structural reinforcement. Predicted performance and cost benefits are illustrated via a study using the NREL 5MW reference wind turbine.

2024年4月3日 · The Andean condor’s drag-reducing aerodynamic wings have inspired the creation of a winglet, which, when added to a wind turbine blade, boosted energy production by an average of 10%,...

Five winglets were investigated with different twist distribution and camber. Four of them were pointing towards the pressure side (upstream) and one was pointing towards the suction side (downstream). Additionally, a rectangular modification of the original blade tip was designed with the same planform area as the blades with winglets.

2011年11月30日 · Purpose This paper aims to discuss the results of the performance study of wind turbine blades equipped with winglets. An investigation focusses on small wind turbines (SWTs), where the...