Volume 14, Issue 1 (2014)
MCEJ 2014, 14(1): 135-145 |
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Noorbalhsh F, Majdzadeh Tabatabai M, Kharazifard M. Experimental Investigation of Scour Hole Length and
Reynolds number variations under Different
Bank Slopes in Rivers. MCEJ 2014; 14 (1) :135-145
URL: http://mcej.modares.ac.ir/article-16-1611-en.html
URL: http://mcej.modares.ac.ir/article-16-1611-en.html
1- Power and Water University of Technology
2- Shahid Beheshti University
2- Shahid Beheshti University
Abstract: (4904 Views)
River bank erosion causes damages to agricultural land, adjacent establishments and widening of river dimensions. Mass failure process of bank erosion is a factor to transport bulk of sediments followed by deposition in downstreams of a river system, which could be an important problem in river management. This research is to investigate internal erosion under different bank and floodplain slopes, By this means, a number of experiments were carried out in a model designed to simulate internal river bank erosion in the laboratory. In these experiments, the scour hole length, resulted from internal erosion and seepage discharge were measured under different hydraulic gradients. Results showed that bank slope plays an effective role in scour hole length and calculated Reynolds number in porous medium. As it was observed that the scour hole length and hydraulic gradient decrease with an increase in the bank slope and porous medium Reynolds number decreases with reduction in the hydraulic gradient.
Received: 2014/09/24 | Accepted: 2014/05/22 | Published: 2014/09/24
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