Publicado 6 números por año
ISSN Imprimir: 2152-5102
ISSN En Línea: 2152-5110
Indexed in
Numerical Study of Flow over Ahmed Body and a Road Vehicle and the Change in Aerodynamic Characteristics Caused by Rear Spoiler
SINOPSIS
With high-speed automobiles much more common nowadays, reducing the lift coefficient to enhance stability on the road is no longer just a concern for race cars. Spoilers are one of the well-known devices for producing down force on a moving vehicle. The aim of this study was to simulate three-dimensional turbulent flow over both a simple car model and a real road vehicle. Flow pattern and the results for aerodynamic forces were in good agreement with experimental results. In addition, the same method was used to investigate the effect of numerous rear-spoilers on lift and drag coefficients of the models. We obtained significant reduction in lift and drag on the models. The popular k−ω SST turbulence model was used to assess aerodynamic forces, as well as pressure and velocity distribution. This study provides a good comparison between different types of spoilers, making it easier to determine an optimum model.
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Cheng See-Yuan, Mansor Shuhaimi, Che Ghani S.A., Wan Hamzah W.A., Alias A., Influence of rear-roof spoiler on the aerodynamic performance of hatchback vehicle, MATEC Web of Conferences, 90, 2017. Crossref
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Cheng S Y, Mansor S, Rear-roof spoiler effect on the aerodynamic drag performance of a simplified hatchback model, Journal of Physics: Conference Series, 822, 2017. Crossref
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Cheng See-Yuan, Chin Kwang-Yhee, Mansor Shuhaimi, Abd Rahman Abd Basid, Experimental study of yaw angle effect on the aerodynamic characteristics of a road vehicle fitted with a rear spoiler, Journal of Wind Engineering and Industrial Aerodynamics, 184, 2019. Crossref