Volume 28 Issue 5
May  2002
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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)

Experimental Study on Flow Construction over Spur Dikes

  • Received Date: 12 Mar 2001
  • Publish Date: 31 May 2002
  • 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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