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二维扰动对下游圆盘压力分布的影响

高磊 王晋军 张攀峰

高磊, 王晋军, 张攀峰等 . 二维扰动对下游圆盘压力分布的影响[J]. 北京航空航天大学学报, 2007, 33(04): 383-387.
引用本文: 高磊, 王晋军, 张攀峰等 . 二维扰动对下游圆盘压力分布的影响[J]. 北京航空航天大学学报, 2007, 33(04): 383-387.
Gao Lei, Wang Jinjun, Zhang Panfenget al. Effects of two-dimensional interference on pressure distribution of a circular disk[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(04): 383-387. (in Chinese)
Citation: Gao Lei, Wang Jinjun, Zhang Panfenget al. Effects of two-dimensional interference on pressure distribution of a circular disk[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(04): 383-387. (in Chinese)

二维扰动对下游圆盘压力分布的影响

基金项目: 国家自然科学基金资助项目(10272016)
详细信息
  • 中图分类号: O 357.1

Effects of two-dimensional interference on pressure distribution of a circular disk

  • 摘要: 通过测量阻力和表面压力,研究了干扰圆柱尾迹产生的二维扰动对下游圆盘气动特性的影响,得到圆盘迎风面压力分布的变化规律,并结合以往流场结构的研究,对其机理进行了分析.结果表明在圆盘与干扰圆柱间距比L/D较小时,圆盘迎风面低压区宽度随间距增大迅速增加;当L/D>0.7时,对于同一直径的干扰圆柱,圆盘迎风面低压区宽度基本保持不变;对于不同直径的干扰圆柱,在圆盘前产生低压区的宽度随圆柱直径的增加而变大.此外,利用这种干扰方法,可以降低圆盘阻力,实验得到圆盘阻力可减少约9%,相应的圆柱/圆盘系统的阻力可减小4%.

     

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出版历程
  • 收稿日期:  2006-05-26
  • 网络出版日期:  2007-04-30

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