Universiti Teknologi Malaysia Institutional Repository

Influence of rear-roof spoiler on the aerodynamic performance of hatchback vehicle

Cheng, S. -Y. and Mansor, S. (2016) Influence of rear-roof spoiler on the aerodynamic performance of hatchback vehicle. In: 2nd International Conference on Automotive Innovation and Green Vehicle, AiGEV 2016, 2 August 2016 through 3 August 2016, Selangor; Malaysia.

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Rear-roof spoiler is commonly used for improving the aerodynamic performance of road vehicles. This study aims to investigate the effect of strip-type rear-roof spoiler on the aerodynamic performance of hatchback vehicles. The main parameter of study was the inclination angle of the spoiler. A computational fluid dynamics (CFD) method was used. The numerically obtained results were compared to the experimental data for validation of the CFD method. The spoiler effectively reduced the aerodynamic lift at positive inclination angle by causing the surface pressure near the roof-spoiler junction to increase. However, its effect is unfavourable when configured at negative angle due to the downward accelerating flow that causes the surface pressure around the roof-spoiler junction to drop. Although the aerodynamic lift was found to decrease with the spoiler angle, this was accompanied by drag increment.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Aerodynamics, Computational fluid dynamics, Lift, Roofs, Vehicle performance, Vehicles
Subjects:T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions:Mechanical Engineering
ID Code:72925
Deposited By: Muhammad Atiff Mahussain
Deposited On:20 Nov 2017 08:33
Last Modified:20 Nov 2017 08:33

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