Study on the effect of window opening on the drag characteristics of a car

Syed Mohamed Ali, Jaffar and Syed Muhammad, Kashif and Shaik Dawood, Mohd. Sultan Ibrahim and Omar, Ashraf Ali (2014) Study on the effect of window opening on the drag characteristics of a car. International Journal of Vehicle Systems Modelling and Testing, 9 (3-4). pp. 311-320. ISSN 1745-6444 (O), 1745-6436 (P)

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Abstract

In this study, the effect of window opening on the drag characteristics of a car is investigated. This additional aerodynamic drag can considerably affect the performance of a car in terms of instability, noise and fuel consumption. Using a 3D car model, the effect of window opening on the drag characteristics was numerically studied using STAR-CCM+ commercial CFD software. It was observed that the aerodynamic drag is highly influenced by the different window openings. For validation, a scaled down car model was tested in the IIUM Low Speed Wind Tunnel. The results obtained from both simulation and experimental data showed that the car with all windows open produced higher drag than a car with all windows closed. The experimental data from the wind tunnel test results was found to be in good agreement to the simulation counter part for the determination of drag coefficient for both window positions.

Item Type:	Article (Journal)
Additional Information:	4262/33136
Uncontrolled Keywords:	Aerodynamic drag; computational fluid dynamics; STAR-CCM+; experiment; wind tunnel
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL1 Motor vehicles
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Dr Mohamed Ali Jaffar Syed
Date Deposited:	10 Jan 2014 09:31
Last Modified:	09 Dec 2015 17:42
URI:	http://irep.iium.edu.my/id/eprint/33136

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