汽车工程

汽车工程 ›› 2020, Vol. 42 ›› Issue (6): 746-752.doi: 10.19562/j.chinasae.qcgc.2020.06.006

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基于气动附件的重型货车空气动力学减阻研究*

王庆洋1, 黄文鹏2, 赖晨光2, 朱习加1, 王勇1   

  1. 1.中国汽车工程研究院股份有限公司,汽车噪声振动和安全技术国家重点实验室,重庆 401122;
    2.重庆理工大学车辆工程学院,重庆 400054
  • 收稿日期:2019-07-24 出版日期:2020-06-25 发布日期:2020-07-16
  • 通讯作者: 王庆洋,工程师,博士,E-mail:wangqingyang@caeri.com.cn
  • 基金资助:
    政府间国际科技创新合作重点专项(2017YFE0102800)资助

Study on Aerodynamic Drag Reduction of a HeavyTruck Based on Aerodynamic Accessories

Wang Qingyang1, Huang Wenpeng2, Lai Chenguang2, Zhu Xijia1, Wang Yong1   

  1. 1. China Automotive Engineering Research Institute Co., Ltd., State Key Laboratory of Vehicle NVH and Safety Technology, Chongqing 401122;
    2. College of Vehicle Engineering, Chongqing University of Technology, Chongqing 400054
  • Received:2019-07-24 Online:2020-06-25 Published:2020-07-16

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摘要： 为减小重型货车的气动阻力,以实现整车节能减排的目标,基于某平头重型货车气动减阻敏感区域,设计了10种独立的气动减阻附件,利用CFD仿真对气动附件的减阻机理和效果进行了研究。结果表明,10种气动附件皆有减阻效果,其中一种仿生学减阻附件,减阻效果明显,减阻率为15.0%,且要求的安装空间小。最后通过气动附件的优化组合,获得了一种最佳减阻方案,减阻率达27.4%。

关键词: 平头重型货车, CFD仿真, 气动附件, 气动阻力

Abstract: For reducing the aerodynamic drag of heavy trucks to achieve the goal of energy saving and emission reduction, based on the sensitive regions in aerodynamic drag reduction, ten single aerodynamic drag reduction accessories for a cab-over-engine heavy truck is designed, with their drag reduction effects and mechanism studied by CFD simulation. The results show that 10 single accessories all have drag reduction effects, in which a bionics-based accessory has an obvious drag reduction effect with a drag reduction rate of 15.0% and a small installation space required. Finally, through the optimum combination of aerodynamic accessories, a best drag reduction scheme is obtained with a drag reduction rate reaching 27.4%

Key words: cab-over-engine heavy truck, CFD simulation, aerodynamic accessories, aerodynamic drag