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Re=3 900的圆柱绕流湍流模拟对比研究

靳瑶 蔡晋生 廖飞

靳瑶, 蔡晋生, 廖飞. Re=3 900的圆柱绕流湍流模拟对比研究[J]. 应用数学和力学, 2016, 37(12): 1282-1295. doi: 10.21656/1000-0887.370512
引用本文: 靳瑶, 蔡晋生, 廖飞. Re=3 900的圆柱绕流湍流模拟对比研究[J]. 应用数学和力学, 2016, 37(12): 1282-1295. doi: 10.21656/1000-0887.370512
JIN Yao, CAI Jin-sheng, LIAO Fei. Comparative Numerical Studies of Flow Past a Cylinder at Reynolds Number 3 900[J]. Applied Mathematics and Mechanics, 2016, 37(12): 1282-1295. doi: 10.21656/1000-0887.370512
Citation: JIN Yao, CAI Jin-sheng, LIAO Fei. Comparative Numerical Studies of Flow Past a Cylinder at Reynolds Number 3 900[J]. Applied Mathematics and Mechanics, 2016, 37(12): 1282-1295. doi: 10.21656/1000-0887.370512

Re=3 900的圆柱绕流湍流模拟对比研究

doi: 10.21656/1000-0887.370512
基金项目: 111计划(B17037)
详细信息
    作者简介:

    蔡晋生,E-mail: caijsh@nwpu.edu.cn

  • 中图分类号: O35; TV131

Comparative Numerical Studies of Flow Past a Cylinder at Reynolds Number 3 900

Funds: 111 Project of China(B17037)
  • 摘要: 重点采用DDES和CLES研究基于Reynolds(雷诺)数3 900的圆柱绕流.大量已有实验和数值研究结果表明:圆柱后缘流动结构和回流区长度与数值空间离散格式息息相关.基于此考虑,选用了一个优化格式并通过典型的简单湍流流动和强激波流动验证了格式对多尺度结构和激波的捕捉能力.然后,分别采用DDES和CLES对基于Reynolds数3 900的圆柱进行数值模拟.通过对比圆柱表面压力分布、圆柱表面平均速度型和圆柱尾迹区的时均脉动量,发现CLES相比于DDES与实验值吻合更好.从瞬时流场来看, DDES和CLES都能捕捉丰富的流场结构,此外,CLES在物面附近区域包含更多微小脉动.最后,尽管CLES对时均脉动捕捉好于DDES,但是程序实现更加复杂.
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出版历程
  • 收稿日期:  2016-11-02
  • 修回日期:  2016-11-27
  • 刊出日期:  2016-12-15

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