Investigation of Different Types of Winglets Effects on the Lift and Drag Performance

Hiew, Lee Wai (2022) Investigation of Different Types of Winglets Effects on the Lift and Drag Performance. Final Year Project (Bachelor), Tunku Abdul Rahman University College.

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Abstract

The aim of this research is to look at the use of different winglet devices to examine the lift and drag performances of an aircraft wing. In this study, the coefficients of lift and drag are investigated in order to optimise wing design for improved aircraft performance.Reduced fuel consumption benefits from a decrease in drag caused by wingtip vortices, which leads to lower fuel emissions.The aerofoil section NACA 4412 is used to design the three-dimensional aircraft wing. For the analysis of the various wing tip devices the three- dimensional wing is incorporated with the blended winglet and wingtip fence.The standard k–epsilon turbulent model was adopted in the three-dimensional simulation analysis to investigate the turbulent air flow characteristics in ANSYS FLUENT COMPUTATIONAL FLUID DYNAMICS software (CFD). This simulation is conducted at the airspeed of 133m/s and air density of 1.225 kg/m. Next, the different angles of attack, the aerodynamic characteristics such as lift and drag coefficient , as well as the pressure distribution, were calculated using CFD software. After analyzing and studying the data, the expected result will show that the airfoil platform with a curve trailing edge and a higher aspect ratio has a higher lift coefficient, a lower drag coefficient, and a higher lift to drag ratio than other airfoil models.The results will be verified and discussed further in the future. Finally, a detailed study of the impact of each design type on aerodynamic efficiency will be carried out.