Universiti Teknologi Malaysia Institutional Repository

Yaw angle effect on the aerodynamic performance of hatchback vehicle fitted with wing spoiler

Chin, Kwang-Yhee and Cheng, See-Yuan and Mansor, Shuhaimi (2019) Yaw angle effect on the aerodynamic performance of hatchback vehicle fitted with wing spoiler. Malaysian Journal of Fundamental and Applied Sciences, 15 (3). pp. 389-393. ISSN 2289-5981


Official URL: https://mjfas.utm.my/index.php/mjfas/article/downl...


Research on spoiler available to date was mainly done to optimize the performance of spoiler in non-zero yaw condition. However, the effect of spoiler is most needed during cornering to ensure the stability of the vehicle. Therefore, this study aims to inspect the effect of yaw angles change on the aerodynamic performance of the NACA 0018 wing spoiler and the subsequent influence on the flow characteristics of the hatchback vehicle. Computational Fluid Dynamics (CFD) has been applied to model the flow. Comparison between numerically obtained results and experimental data was done to validate the CFD method. The findings show that both the drag coefficient, Cd, and lift coefficient, Cl have increased with increasing yaw angle. However, the spoiler has performed in favor of reducing the Cd and Cl even with increasing yaw angle. The averaged proportion contributions from the spoiler to the overall Cd and Cl are 2.7% and 4.1%, respectively. The other body parts that have contributed to the Cd and Cl reductions were the base and slant, and the roof.

Item Type:Article
Uncontrolled Keywords:Yaw angle, spoiler, aerodynamics
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:84989
Deposited By: Fazli Masari
Deposited On:29 Feb 2020 13:34
Last Modified:29 Feb 2020 13:34

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