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Volume 28 Issue 5
May  2002
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Journal of Beijing University of Aeronautics and Astronautics  > 2002  >  28(5): 585-588.
ZHANG Bai-shan, Lü Zhi-yong, ZHU Li-guoet al. Experimental Study on Flow Construction over Spur Dikes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(5): 585-588. (in Chinese)
Citation: ZHANG Bai-shan, Lü Zhi-yong, ZHU Li-guoet al. Experimental Study on Flow Construction over Spur Dikes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(5): 585-588. (in Chinese)
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Experimental Study on Flow Construction over Spur Dikes

  • Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics

  • Received Date: 12 Mar 2001
  • Publish Date: 31 May 2002
    Abstract
  • To understand effect of number and incidence of spur-dikes on flow pattern, flow construction over spur-dikes was studied by flow visualization and light sheet technique in a water channel. There are horse-shoe vortex around spur-dikes and Karman vortices behind spur-dikes. Depending on Reynolds number, flow patterns over spur-dikes can be divided into 4 types: steady single horse-shoe vortex; unsteady single horse-shoe vortex; unsteady double horse-shoe vortices Ⅰ and unsteady double horse-shoe vortices Ⅱ. If number and incidence of spur-dike decrease, intensity of horseshoe vortex and Karman vortices decrease.

     

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  • [1] 马继业. 黄河下游丁坝坝头局部冲刷的研究 . 武汉:武汉水利电力大学,1996.1~36. [2]张柏山,赵建军. 黄河下游丁坝局部冲刷深度的计算 .见:张红武编.河南省首届泥沙研究讨论会论文集 . 郑州:黄河水利出版社,1995. 97~101. [3]张 华,吕志咏. 后掠翼身交接区流动结构及参数影响的研究[J]. 流体力学实验与测量,2000,14(2):16~20.
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