Experimental investigation of spoiler application in an SUV type vehicle

Year 2023, Volume: 10 Issue: 1, 1 - 5, 30.06.2023

Hasan Çiftçi , Cihan Bayındırlı , İlker Örs

https://doi.org/10.31593/ijeat.1223324

Abstract

In this study, it is aimed to provide fuel economy and driving stability and comfort by reducing the drag coefficient by applying a spoiler to on an SUV model vehicle. The albatross type was preferred as the spoiler and it was mounted to the rear of the vehicle, as high as 10% of the total vehicle height. The model vehicle is 1/32 of its actual dimensions. The experiments were carried out at 4 different free flow velocities in the range of 2.08×103-5.35×103 Reynolds number. As a result of the experiment, it was determined that the use of spoilers reduced the drag coefficient value by 5.72%. Thanks to this study, it has been revealed that there is an improvement in fuel economy. Thus, it has been shown that aerodynamic performance can be improved by applying different spoiler applications in SUV model vehicles that are widely used today.

Keywords

Flow control, Spoiler, Vehicle aerodiynamics, Wings

Supporting Institution

Scientific Research Projects Coordination Unit of Selçuk University

Project Number

21201077

Thanks

The authors have very grateful to Niğde University and Selçuk University for their facilities and support. Besides, the authors thank Selçuk University for the financial support provided by the Scientific Research Projects Coordination Unit of Selçuk University, project which are under the grant number 21201077.

References

• Arabacı, S. 2016. “Improvement of Aerodynamic Design of Vehicles with Inspiration from Creatures”. Ph.D. thesis, Celal Bayar University, Graduate Department of Mechanical Engineering, Manisa, Türkiye, 7-11.
• Kurec, K., Remer, M., Mayer, T., Tudruj, S. and Piechna, J. 2019. Flow control for a car-mounted rear wing. International Journal of Mechanical Sciences, 152, 384-399.
• Sivaraj, G., Parammasivam, K.M., Prasath, M.S, Vadivelu, P. and Lakshmanan, D. 2021. Flow analysis of rear end body shape of the vehicle for better aerodynamic performance. Materials Today: Proceedings, 47, 2175-2181.
• El Gaouti, Y., Colin, G., Thiam, B. and Mazellier, N. 2021. Online vehicle aerodynamic drag observer with Kalman filters. IFAC PapersOnLine, 54(2), 51-56.
• Kim, J.S., Sung, J., Kim, S. and Kim, J.S. 2008. PIV Measurements on the Change of the Three-Dimensional Wake Structures by an Air Spoiler of a Road Vehicle. The Visualization Society of Japan, Journal of Visualization, 11(1), 45-54.
• Kim, J.S., Kim, S., Sung, J., Kim, J.S. and Choi, J. 2006. Effects of an Air Spoiler on the Wake of a Road Vehicle by PIV Measurements. The Visualization Society of Japan, Journal of Visualization, 9(4), 411-418.
• Palanivendhan, M., Chandradass, J., Saravanan, C., Philip, J. and Sharan, R., 2021. Reduction in aerodynamic drag acting on a commercial vehicle by using a dimpled surface. Materials Today: Proceedings, 45, 7072-7078.
• Guo, Z., Liu, T., Xia, Y. and Liu, Z. 2022. Aerodynamic influence of the clearance under the cowcatcher of a high-speed train. Journal of Wind Engineering & Industrial Aerodynamics, 220, 104844.
• Cheng, S., Chin, K., Mansor, S. and Abd Rahman, A. 2019. Experimental study of yaw angle effect on the aerodynamic characteristics of a road vehicle fitted with a rear spoiler. Journal of Wind Engineering & Industrial Aerodynamics, 184, 305-312.
• Brandt, A., Sebben, S. and Jacobson, B. 2022. Base wake dynamics and its influence on driving stability of passenger vehicles in crosswind. Journal of Wind Engineering & Industrial Aerodynamics, 230, 105164.
• Hetawala, S., Gophaneb, M., Ajay, B.K. and Mukkamala, Y. 2014. Aerodynamic Study of Formula SAE Car. Procedia Engineering, 97, 1198-1207.
• Das, R.C. and Riyad M. 2017. CFD Analysis of Passenger Vehicleat Various Angle of Rear End Spoiler. Procedia Engineering, 194, 160-165.
• Verma, R.P., Chaudhary, N.K. and Avikal, S. 2021. Effect of direction of lip spoiler on the aerodynamic performance of a small passenger vehicle. Materials Today: Proceedings, 46, 10301-10305.
• Palanivendhan, M., Chandradass, J., Bannaravuri, P.K., Philip, J. and Shubham, K. 2021. Aerodynamic simulation of optimized vortex generators and rear spoiler for performance vehicles. Materials Today: Proceedings, 45, 7228-7238.
• Bayındırlı, C. and Çelik, M. 2019. The Improving of Affecting Aerodynamic Drag Force To A Vehicle With Rear Deck Spoiler. Afyon Kocatepe University Journal of Science and Engineering, 19(025903), 470-479.
• Çengel Y.A., ve Cimbala J.M. 2008. “Akışkanlar Mekaniği Temelleri ve Uygulamaları” (çev. Engin. T, Öz. H.R, Küçük. H, ve Çeşmeci. Ş. Güven Bilimsel Yayınları, 562-599.
• Bayındırlı. C. Akansu. Y.E. Celik. M. 2020. Experimental and Numerical Studies on Improvement of Drag Force of a Bus Model Using Different Spoiler Models. Int. J. Heavy Vehicle Systems. 27-6. 743-776.
• Bayındırlı, C. Çelik, M. 2018. The Experimentally and Numerically Determination of the Drag Coefficient of a Bus Model. International Journal Of Automotive Engineering And Technologies, 7(3), 117-123.