To study the Aerodynamic Effects of Spoiler of a Car (Sedan – Segment) using Computational Fluid Dynamics

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  • Assistant Professor, School of Mechanical Engineering, REVA University, Bangalore 560064, Karnataka
  • Associate Professor, Department of Mechanical Engineering, Government Engineering College, Ramanagaram 562159, Karnataka



Automotive industry, Aerodynamics, ANSYS Fluent, Spoiler of a car, Lift


Aerodynamic is an important aspect in consideration with regard to automotive design. Efficient diagnosis of aerodynamic forces’ effect on a car body becomes necessary when automobiles run at very high speed. In recent days, almost all automobile products coming into the market are designed considering the effect of aerodynamic forces.

The objective of this analysis is to simulate the flow of air over a car body and to estimate the effect of aerodynamic forces like drag and lift. The prediction of drag becomes necessary for vehicle running at higher speeds, may lead to higher fuel consumption, dropping the efficiency. The induced “LIFT” will disconnect wheels and road, which may lead to accidents. The current analysis we are performing, will analyze the effect of these forces on car, with and without spoiler, to understand the spoiler’s presence helping in reducing the drag and its contribution to increase the efficiency of the car. Hypermesh is used for pre-processing and ANSYS Fluent is used as a solver and post processor.



James, A.E.: Design of an aerodynamic rear spoiler, Federal University of Agriculture, Makurdi, Nigeria (2013).

Redfern, J.: The most aerodynamic new cars you can buy in 2018, Motoring Research (2018). https:// Accessed 10 Nov 2019.

Hu, X.-X., Wong, E.T.T.: A numerical study on rearspoiler of passenger vehicle. Int. J. Mech. Mechatron. Eng. 5(2), 636–641 (2011).

Das, R.C., Riyad, M.: CFD analysis of passenger vehicle at various angle of rear end spoiler. Proc. Eng. 194, 160–165 (2017) DOI:

Tomar, A.S., Prajapati, A., Sharma, A., Shrivastava, S.: CFD analysis on the aerodynamic effects of spoiler at different angle on car body. Int. J. Innov. Technol. Explor. Eng. (IJITEE) 8(7), 2845–2848 (2019).

Ipilakyaa, T.D., Tuleun, L.T., Kekung, M.O.: Computational fluid dynamics modelling of an aerodynamic rear spoiler on cars. Niger. J. Technol. (NIJOTECH) 37(4), 975–980 (2018). DOI:

Bhatt, P.: Dynamic rear car spoiler for high speed turning stability. Int. J. Mech. Prod. Eng. 3(12), 48–49 (2015).

Yuan, Z., Wang, Y.: Effect of underbody structure on aerodynamic drag and optimization. J. Meas. Eng. 5(3), 194–204 (2017) DOI:

Hamut, H.S., El-Emam, R.S., Aydin, M., Dincer, I.: Effects of rear spoilers on ground vehicle aerodynamic drag. Int. J. Numer. Meth. Heat Fluid Flow 24(3), 627– 642 (2014. DOI:

Stojanovic, N., Abdullah, O.I., Schlattmann, J., Grujic, I., Miloradovic, D.: 3D aerodynamic simulation of the heavy duty commercial vehicle. In: Dumitru, I., Covaciu, D., Racila, L., Rosca, A. (eds.) The 30th SIAR International Congress of Automotive and Transport Engineering, SMAT 2019, pp. 68–81. Springer, Cham (2020). DOI:




How to Cite

B P, M., & Mahendramani, G. (2023). To study the Aerodynamic Effects of Spoiler of a Car (Sedan – Segment) using Computational Fluid Dynamics. Journal of Mines, Metals and Fuels, 70(10A), 424–429.