Analisis Pengaruh Penambahan Blended Winglet Pada Pesawat Boeing 737 – 400 Terhadap Aerodinamika Pada Sayap Pesawat Menggunakan Metode Ansys

Abstract

This research aims to explore the effect of adding a Blended Winglet to the wing of the Boeing 737-400 on its aerodynamic characteristics, particularly with regard to the reduction of wing‐tip vortices and the induced drag they generate. Using a numerical simulation approach via Computational Fluid Dynamics (CFD) in ANSYS Fluent, the study models the airflow around the wing with and without a winglet to obtain comparative data on the lift‐to‐drag ratio, induced drag coefficient, and changes in tip‐vortex behaviour. The expected findings show that the installation of a blended winglet can significantly reduce vortex strength and induced drag—consistent with literature stating winglets help reduce induced drag. With these improvements, this aerodynamic modification has the potential not only to enhance fuel efficiency and reduce operational costs but also to support sustainability in aviation through lower carbon emissions.