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车身非光滑表面凹坑排布对气动性能的影响

谢非 丁玉梅 秦柳 虞华春 杨卫民

谢非, 丁玉梅, 秦柳, 虞华春, 杨卫民. 车身非光滑表面凹坑排布对气动性能的影响[J]. 应用数学和力学, 2015, 36(5): 505-514. doi: 10.3879/j.issn.1000-0887.2015.05.006
引用本文: 谢非, 丁玉梅, 秦柳, 虞华春, 杨卫民. 车身非光滑表面凹坑排布对气动性能的影响[J]. 应用数学和力学, 2015, 36(5): 505-514. doi: 10.3879/j.issn.1000-0887.2015.05.006
XIE Fei, DING Yu-mei, QIN Liu, YU Hua-chun, YANG Wei-min. Effects of Non-Smooth Surface Dimple Configuration on Vehicle Body Aerodynamic Characteristics[J]. Applied Mathematics and Mechanics, 2015, 36(5): 505-514. doi: 10.3879/j.issn.1000-0887.2015.05.006
Citation: XIE Fei, DING Yu-mei, QIN Liu, YU Hua-chun, YANG Wei-min. Effects of Non-Smooth Surface Dimple Configuration on Vehicle Body Aerodynamic Characteristics[J]. Applied Mathematics and Mechanics, 2015, 36(5): 505-514. doi: 10.3879/j.issn.1000-0887.2015.05.006

车身非光滑表面凹坑排布对气动性能的影响

doi: 10.3879/j.issn.1000-0887.2015.05.006
详细信息
    作者简介:

    谢非(1990—),男,黑龙江人,硕士生(E-mail: xiefei19900702@163.com);杨卫民(1965—),男,湖南人,教授,博士,博士生导师, 长江学者(通讯作者.E-mail: yangwm@mail.buct.edu.cn).

  • 中图分类号: O355;U461.1

Effects of Non-Smooth Surface Dimple Configuration on Vehicle Body Aerodynamic Characteristics

  • 摘要: 受仿生学非光滑旋成体减阻启发,以SAE(美国机动车工程师协会)标准模型为研究对象,采用CFD(计算流体力学)数值模拟方法,在SAE模型顶部布置不同排布形式和不同排布密度的凹坑单元,研究其对车身气动性能的影响.通过比较各模型的尾流、气流速度、压力场、湍流动能等流场性能指标,分析非光滑表面减阻机理以及造成各模型流场性质差异的原因.计算结果显示:当凹坑型非光滑单元以矩形排布时模型具有最小的气动阻力,且气动阻力随着凹坑密度的增加而减小,减阻率最高达到4.1%.
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出版历程
  • 收稿日期:  2014-08-29
  • 修回日期:  2015-03-20
  • 刊出日期:  2015-05-15

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