Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(5), 1505-1514 | DOI: 10.11118/actaun201765051505

Computer Simulation of Car Aerodynamic Properties

Ivan Janoško1, Tomáš Polonec1, Peter Kuchar1, Pavel Máchal2, Martin Zach3
1 Department of Transport and Handling, Faculty of Engineering, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovak Republic
2 Department of Project Management, Faculty of Regional Development and International Studies, Mendel University in Brno, Zemědělská 1/1665, 613 00 Brno, Czech Republic
3 Expert Engineering Department, Institute of Lifelong Learning, Mendel University in Brno, Zemědělská 1/1665, 613 00 Brno, Czech Republic

The paper presents an optimization of car aerodynamic properties using the simulation software STAR-CCM+. For real simulation was used tested car Fiat 127 which was modified on the performance car. The basic objective of this work is using computer simulations to obtain knowledge about the impact of individual body parts on the results of aerodynamic drag, downforce or lift. Based on the results, bodywork modifications will be designed to improve the aerodynamic characteristics of the body, but would not disrupt the basic shape and appearance of the vehicle. The modifications will be again subjected to tests in simulation software. On the modified body was significantly reduced torque of the front axle, while increased of rear axle (cca 1250 N.m). This caused a significant stabilizing effect on the rear axle. The results of simulation tests before and after use bodywork modifications are processed in graphical and numerical form.

Keywords: aerodynamic resistance, lifting force, car stability, car modification
Grants and funding:

Supported by the Grant Agency VEGA of the Ministry of Education of the Slovak Republic and Slovak Academy of Sciences, Grant VEGA No. 1/0337/15 "Research aimed at influence of agricultural, forest and transport machinery on environment and its elimination on the basis of ecological measures application".

Published: October 31, 2017  Show citation

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Janoško, I., Polonec, T., Kuchar, P., Máchal, P., & Zach, M. (2017). Computer Simulation of Car Aerodynamic Properties. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 65(5), 1505-1514. doi: 10.11118/actaun201765051505
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