吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (1): 44-48.doi: 10.13229/j.cnki.jdxbgxb201501007

• Orignal Article • Previous Articles     Next Articles

Numerical simulation of transient aerodynamic characteristics of turning vehicle

WANG Jing-yu1, WANG Ze-wei2, GU Qing-tong1, HU Xing-jun1, WANG Bao-yu2   

  1. 1.State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    2.College of Automotive Engineering,Jilin University,Changchun 130022,China
  • Received:2013-10-14 Online:2015-02-01 Published:2015-02-01

Abstract: Computational Fluid Dynamics (CFD) simulation with overset grid is carried out to investigate the transient aerodynamic characteristics of the flow field around a simplified model of straight driving vehicle. Wind tunnel test is conducted to verify the CFD simulation results. Based on this, CFD simulation of the flow field around a turning vehicle is carried out. The aerodynamic drag coefficient and velocity vectors are obtained. The results are analyzed in contrast with the results of straight driving vehicle. The turning vehicle experiences a transient side force and a yawing moment, both of which sharply increase as the turning radius decreases. Both the side force and the yawing moment change with the vehicle speed, which would affect the vehicle stability. This study provides reference for further study of the transient aerodynamic characteristics of turning vehicle.

Key words: vehicle engineering, overset grid, transient numerical simulation, cornering, aerodynamic characteristics

CLC Number: 

  • U461
[1] Yoshihiro Okada, Takahide Nouzawa, Satoshi Okamoto, et al. Unsteady vehicle aerodynamics during a dynamic steering action: 1st report, on-road analysis[C]∥SAE Paper,2012-01-0446.
[2] Makoto Tsubokura,Yuki Ikawa.Unsteady vehicle aerodynamics during a dynamic steering action:2nd report, numerical analysis[C]∥SAE Paper,2012-01-0448.
[3] Le Good Geoffrey M, Garry Kevin P. On the use of reference models in automotive aerodynamics[C]∥SAE Paper, 2004-01-1308.
[4] Tsuneaki Ishima, Yasushi Takahashi, Haruki Okado,et al. 3D-PIV measurement and visualization of streamlines around a standard SAE vehicle model[C]∥SAE Paper, 2011-01-0161.
[5] Garry Kevin P, Le Good Geoffrey M. An investigation of the sensitivity of rear wing orientation for saloon race cars[C]∥SAE Paper, 2005-01-1018.
[6] Schrock David, Widdecke Nils, Wiedemann Jochen.The effect of high turbulence intensities on surface pressure fluctuations and wake structures of a vehicle model[C]∥SAE Paper, 2009-01-0001.
[7] Kapadia S, Roy S. Detached eddy simulation over a reference Ahmed car model[C]∥AIAA Paper,2003-0857.
[8] Asya Gabbasa, Badih Ali Jawad.CFD-Based shape optimization for optimal aerodynamic design[C]∥SAE Paper, 2012-01-0507.
[9] 王福军. 计算流体动力学分析 [M]. 北京:清华大学出版社,2004: 125-126.
[10] Fluent Inc. Fluent User's Guide[M]. New York: Fluent Inc, 2003.
[11] Guilmineau E. Experimental and numerical analysis of the effect of side wind on a simplified car mode[C]∥SAE Paper, 2007-01-0108.
[12] 毛嘉川. 弯道宽度对车辆行驶轨迹和速度的影响规律[J]. 交通科学与工程,2011,27(4):78-84.
Mao Jia-chuan. Effect of driving width of bends on track and speed of passenger car[J]. Journal of Transport Science and Engineering,2011, 27(4): 78-84.
[13] Wang Jing-yu, Hu Xing-jun, Zhang Zhi.Research of lane-changed overtaking based on overlapping grid[C]∥ICCAHE, Zhangjiajie, China,2012.
[1] CHANG Cheng,SONG Chuan-xue,ZHANG Ya-ge,SHAO Yu-long,ZHOU Fang. Minimizing inverter capacity of doubly-fed machine driving electric vehicles [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1629-1635.
[2] XI Li-he,ZHANG Xin,SUN Chuan-yang,WANG Ze-xing,JIANG Tao. Adaptive energy management strategy for extended range electric vehicle [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1636-1644.
[3] HE Ren,YANG Liu,HU Dong-hai. Design and analysis of refrigeration system supplied by solar auxiliary power of refrigerator car [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1645-1652.
[4] NA Jing-xin,MU Wen-long,FAN Yi-sa,TAN Wei,YANG Jia-zhou. Effect of hygrothermal aging on steel-aluminum adhesive joints for automotive applications [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1653-1660.
[5] LIU Yu-mei,LIU Li,CAO Xiao-ning,XIONG Ming-ye,ZHUANG Jiao-jiao. Construction on collision avoidance model of bogie dynamic simulation test bench [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1661-1668.
[6] ZHAO Wei-qiang, GAO Ke, WANG Wen-bin. Prevention of instability control of commercial vehicle based on electric-hydraulic coupling steering system [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1305-1312.
[7] SONG Da-feng, WU Xi-tao, ZENG Xiao-hua, YANG Nan-nan, LI Wen-yuan. Life cycle cost analysis of mild hybrid heavy truck based on theoretical fuel consumption model [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1313-1323.
[8] ZHU Jian-feng, ZHANG Jun-yuan, CHEN Xiao-kai, HONG Guang-hui, SONG Zheng-chao, CAO Jie. Design modification for automotive body structure based on seat pull safety performance [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1324-1330.
[9] NA Jing-xin, PU Lei-xin, FAN Yi-sa, SHEN Chuan-liang. Effect of temperature and humidity on the failure strength of Sikaflex-265 aluminum adhesive joints [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1331-1338.
[10] WANG Yan, GAO Qing, WANG Guo-hua, ZHANG Tian-shi, YUAN Meng. Simulation of mixed inner air-flow integrated thermal management with temperature uniformity of Li-ion battery [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1339-1348.
[11] JIN Li-sheng, XIE Xian-yi, GAO Lin-lin, GUO Bai-cang. Distributed electric vehicle stability control based on quadratic programming [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1349-1359.
[12] KUI Hai-lin, BAO Cui-zhu, LI Hong-xue, LI Ming-da. Idling time prediction method based on least square support vector machine [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1360-1365.
[13] WANG De-jun, WEI Wei-li, BAO Ya-xin. Actuator fault diagnosis of ESC system considering crosswind interference [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1548-1555.
[14] HU Man-jiang, LUO Yu-gong, CHEN Long, LI Ke-qiang. Vehicle mass estimation based on longitudinal frequency response characteristics [J]. 吉林大学学报(工学版), 2018, 48(4): 977-983.
[15] LIU Guo-zheng, SHI Wen-ku, Chen Zhi-yong. Finite element analysis of transmission error for hypoid gears considering installation error [J]. 吉林大学学报(工学版), 2018, 48(4): 984-989.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!