Experimental Study on Flow Pattern and Scour Hole Dimensions Around a T-Shaped Spur Dike in a Channel Bend Under Emerged and Submerged Conditions

2017 ◽  
Vol 15 (7) ◽  
pp. 1019-1034 ◽  
Author(s):  
Mojtaba Mehraein ◽  
Masoud Ghodsian ◽  
Mojtaba Khosravi Mashizi ◽  
Mohammad Vaghefi
Keyword(s):  
Experimental Study ◽  
Flow Pattern ◽  
Spur Dike ◽  
Channel Bend ◽  
Scour Hole ◽  
Scour Hole Dimensions ◽  
Hole Dimensions ◽  
Submerged Conditions

Experimental Study on Scour around a T-Shaped Spur Dike in a Channel Bend

2012 ◽  
Vol 138 (5) ◽  
pp. 471-474 ◽  
Author(s):  
Mohammad Vaghefi ◽  
Masoud Ghodsian ◽  
Seyed Ali Akbar Salehi Neyshabouri
Keyword(s):  
Experimental Study ◽  
Spur Dike ◽  
Channel Bend

scholarly journals The effects of splitters on the downstream scour hole of overflow spillways: application of support vector regression

2021 ◽  
Author(s):  
Mohammad Ehsan Asadi ◽  
Seyed Taghi Omid Naeeni ◽  
Reza Kerachian
Keyword(s):  
Support Vector Regression ◽  
Experimental Models ◽  
Data Driven ◽  
Support Vector ◽  
Method Performance ◽  
Statistical Measures ◽  
Proposed Model ◽  
Scour Hole ◽  
Scour Hole Dimensions ◽  
Hole Dimensions

Abstract One of the most effective ways to reduce the water jet erosion power during dam overflow is to use splitters on the lower side of spillway. The dimensions of scouring holes and their location in the dam basin should be accurately determined. Experimental models and data driven techniques can be effectively used for estimating the dimensions of scouring holes. The focus of this paper is evaluating the effects of splitters on the downstream scour hole of overflow spillways and providing an optimized splitter configuration. The Support Vector Regression (SVR) method performance in predicting the scour hole dimensions and its location downstream of the dam has been examined using 116 experimental data. In order to evaluate the efficiency of the proposed model, we used different statistical measures. The results show that the presence of splitters decreases the slope of downstream scouring in all situations. It is also shown that the SVR method can accurately estimate the dimensions of the scour hole and its location.

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