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Journal of Applied Sciences
  Year: 2012 | Volume: 12 | Issue: 4 | Page No.: 362-368
DOI: 10.3923/jas.2012.362.368
 
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Scour Depth at the Edge of Different Submerged Vanes Shapes

Reza Azizi, Mahmood Shafai Bejestan and Mehdi Ghomeshi

Abstract:
The technique of submerged vanes is a new and efficient sediment management method in rivers. This method has positive environmental effects. The performance and efficiency of a submerged vane is related to its shape. In the present study, physical hydraulic model testing is performed to investigate four shapes of vanes: a simple rectangular vane and three vanes that are beveled at leading edge in 30, 45 and 60 degrees with respect to the base, respectively. The experiments show that cutting the leading edge of the vanes reduces the local scour around the vanes. Maximum scour depth reduction occurred due to the maximum chamfer at leading edge of the vanes. Based on the results, cutting the leading edge of the vanes is a performance improving and also cost saving modification, too.
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How to cite this article:

Reza Azizi, Mahmood Shafai Bejestan and Mehdi Ghomeshi, 2012. Scour Depth at the Edge of Different Submerged Vanes Shapes. Journal of Applied Sciences, 12: 362-368.

DOI: 10.3923/jas.2012.362.368

URL: https://scialert.net/abstract/?doi=jas.2012.362.368

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