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Numerical Study on the Effect of Vortex Generators on the Aerodynamic Drag of a High-Speed Train

Tian Li1,2,*, Hao Liang1, Zerui Xiang2, Jiye Zhang1

1 State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu, 610031, China
2 School of Design, Southwest Jiaotong University, Chengdu, 610031, China

* Corresponding Author: Tian Li. Email: email

Fluid Dynamics & Materials Processing 2024, 20(2), 463-473. https://doi.org/10.32604/fdmp.2023.043618

Abstract

A relatively high aerodynamic drag is an important factor that hinders the further acceleration of high-speed trains. Using the shear stress transport (SST) k-ω turbulence model, the effect of various vortex generator types on the aerodynamic characteristics of an ICE2 (Inter-city Electricity) train has been investigated. The results indicate that the vortex generators with wider triangle, trapezoid, and micro-ramp arranged on the surface of the tail car can significantly change the distribution of surface pressure and affect the vorticity intensity in the wake. This alteration effectively reduces the resistance of the tail car. Meanwhile, the micro-ramp vortex generator with its convergent structure at the rear exhibits enhanced flow-guiding capabilities, resulting in a 15.4% reduction in the drag of the tail car.

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Numerical Study on the Effect of Vortex Generators on the Aerodynamic Drag of a High-Speed Train

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APA Style
Li, T., Liang, H., Xiang, Z., Zhang, J. (2024). Numerical study on the effect of vortex generators on the aerodynamic drag of a high-speed train. Fluid Dynamics & Materials Processing, 20(2), 463-473. https://doi.org/10.32604/fdmp.2023.043618
Vancouver Style
Li T, Liang H, Xiang Z, Zhang J. Numerical study on the effect of vortex generators on the aerodynamic drag of a high-speed train. Fluid Dyn Mater Proc. 2024;20(2):463-473 https://doi.org/10.32604/fdmp.2023.043618
IEEE Style
T. Li, H. Liang, Z. Xiang, and J. Zhang "Numerical Study on the Effect of Vortex Generators on the Aerodynamic Drag of a High-Speed Train," Fluid Dyn. Mater. Proc., vol. 20, no. 2, pp. 463-473. 2024. https://doi.org/10.32604/fdmp.2023.043618



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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