A variable cant angle and winglet span analysis to optimize winglet performance

• Main Authors: Al-Khafaji, Ali J., Panatov, G. S., Boldyrev, A. S.
• Format: Conference Proceeding
• Language: English
• Subjects: Aerodynamics; Aircraft performance; Angle of attack; Drag; Three dimensional models; Wing tip vortices; Winglets
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0156930

Winglet considers one of the most effective ways to reduce wingtip vortices, and since winglet is discovered, much research has been made to improve its work. Different parameters can be enhanced to optimize the winglet work. So, in this paper, the aerodynamics characteristics of the winglets analyzing at different cant angles and span of winglet values to improve the winglet performance. Four different cant angles were studies, and three different winglet spans of a semi-span wing were considered. All the models were tested for four Angle of attack values. Then, the values of lift to drag ratio calculated to choose the model with highest lift force and the lowest value of drag. All wing models (fifty-two models) are modeled in 3D using SOLIDWORKS software based on wing dimensions of 737-800 Boeing, then the models are analyzed utilizing ANSYS FLUENT. The calculation shows the values of the cant angle and span of winglet influence on the performance aerodynamic of aircraft versus AOA. The best ratio of lift to drag value was found in model with a cant angle 60o, winglet span 20%, and AOA 5o.