Abstract
The vehicle aerodynamics is significantly influenced by its front shape covering hood, bumper, rounds and tapers. Similarly, vehicle rear geometry also influences its aerodynamics which includes trunks and spoilers. With high standards of road safety regulations, the use of aerodynamics can significantly improve vehicle stability especially at high speeds and at turning. The optimized design of spoilers inspired by aircraft wings can significantly increase negative lift and thus improve traction which gives stable and controllable drive at high speeds. The current research investigates the application of NACA inspired rear spoiler in passenger sedan cars using computational fluid dynamics. The CAD model of car is established in Creo project package and analyzed using ANSYS CFX 18.1 software package. The CFD analysis is conducted at four different air speeds (15.5, 25.5, 35.5 and 45.5 m/s) using standard k-epsilon turbulence model. The study shows that the application of spoilers significantly increased vehicle traction while minimal increase in drag force and power consumption. With increase in vehicle velocity the percentage increase in negative lift rises except at 35.5 m/s and with the increase in negative lift the traction rises and thus helps avoiding skidding of vehicles at high speeds or at sharp turns.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Kyei SM (2014) Composite car rear spoiler. Degree Thesis, Plastics Technology
Hu X, Wong: ETT (2011) A numerical study on rear-spoiler of passenger vehicle. Int J Mech Mecha Eng 5(9)
Kumar N, Lalit Narayan K, Narasimha Rao LNV, Sri Ram Y (2015) Investigation of drag and lift forces over the profile of car with rear spoiler using CFD V. Int J Adv Sci Res 1(8)
Rear-spoiler-type. https://tagmotorsports.com/techart-991-2-rear-spoiler-type-ii. last accessed 18 Nov 2019
Liu Z (2015) Computational Fluid Dynamics Solver with preconditioned method for aerodynamic simulation of high-lift configuration. J Aircraft 53(4):1056–1064
Necci C (2009) Industrial computational fluid dynamics tool for evaluation of aerodynamic coefficients. J Aircraft 46(6):1973–1983
Hull DG (2007) Fundamentals of airplane flight mechanics. Springer, Berlin
Jamerson A (2017) Using computational fluid dynamics for aerodynamics—a critical assessment. Stanford University, California, United States of America, pp 5–8
Jamerson A (2006) Using computational fluid dynamics for aerodynamics. Stanford University, California, United States of America, pp 1–4
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Marumo, R., Molwane, O.B., Agarwal, A. (2020). Numerical Analysis of Rear Spoilers in Improving Vehicle Traction. In: Praveen Kumar, A., Dirgantara, T., Krishna, P.V. (eds) Advances in Lightweight Materials and Structures . Springer Proceedings in Materials, vol 8. Springer, Singapore. https://doi.org/10.1007/978-981-15-7827-4_16
Download citation
DOI: https://doi.org/10.1007/978-981-15-7827-4_16
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-15-7826-7
Online ISBN: 978-981-15-7827-4
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)