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Mathematical Problems in Engineering
Volume 2017 (2017), Article ID 5781038, 16 pages
Research Article

A New Method to Optimize the Wake Flow of a Vehicle: The Leading Edge Rotating Cylinder

1Mechanical Department, Jilin University, Nanling Campus, Changchun 130025, China
2China FAW Group Corporation R&D Center, Changchun 130011, China

Correspondence should be addressed to Guofeng Yao

Received 16 February 2017; Revised 17 April 2017; Accepted 21 May 2017; Published 28 June 2017

Academic Editor: Sébastien Poncet

Copyright © 2017 Nan Shao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The wake flow of a vehicle significantly influences its aerodynamic performance and the stability during high-speed drive. Therefore, optimization of the vehicle wake flow is an effective way to improve its aerodynamic performance and further improve the handling stability and fuel economy. In this paper, a new method, the leading edge rotating cylinder, is used to optimize the wake flow of a vehicle. According to the results of simulations, this method can reduce the pressure drag, increase the negative lift force, and strengthen the stability of the vehicle under crosswind. Furthermore, this method optimizes not only the wake flow of the vehicle with rotating cylinders but also the interactive vehicles in the driving route in overtaking maneuvers or platoon driving. In conclusion, this method effectively optimizes the flow fields around the vehicles, and it significantly helps to improve the handling stability and fuel economy of the vehicle.