AERODINAMIC ANALISYS OF DOUBLEWINGLET WITH VARIOUS DOWNWARD WINGLET ANGLE USING CFD

Suandi, Agus and Helmizar, Helmizar and Vihartiyah, Aisyah (2019) AERODINAMIC ANALISYS OF DOUBLEWINGLET WITH VARIOUS DOWNWARD WINGLET ANGLE USING CFD. In: 2019 International Conference on Engineering, Technologies, and Applied Sciences (ICETsAS 2019), 17-18 Oktober 2019, Hotel Santika, Bengkulu.

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Abstract

The winglet on an aircraft wing aims to reduce the occurrence of vortex on the wingtip so as to improve the aerodynamic performance of the aircraft. Winglet increase the effectiveness of the wing aspect ratio which reduces drag and also increases lift so as to reduce aircraft energy consumption. In this study wingtip modifications were carried out using double-winglets on the NACA 65(3)-218 airfoil wings with the upward winglet angle constant 45o and various downward winglet angles 30, and 90o tested at various angles of attack (AoA) .The objectives of the analysis were to compare the aerodynamic characteristics and to investigate the performance of airplane wing without winglet, blended winglet and double winglet. The CFD simulations were performed at low subsonic flow speed in ANSYS CFD solver. Spalart-Allmaras turbulence model and 3-dimensional tetrahedrons mesh were used to compute the flow around the model.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering > Department of Mechanical Engineering
Depositing User: Septi Septi
Date Deposited: 23 Jan 2020 12:12
Last Modified: 23 Jan 2020 12:12
URI: http://repository.unib.ac.id/id/eprint/20550

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