International Journal of Advances in Mechanical and Civil Engineering (IJAMCE)
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  Journal Paper

Paper Title :
Experımental Study of Local Scour Around Spur Dıkes in Straıght Open Channels

Author :Cansu Ozyaman, Cahit Yerdelen

Article Citation :Cansu Ozyaman ,Cahit Yerdelen , (2017 ) " Experımental Study of Local Scour Around Spur Dıkes in Straıght Open Channels " , International Journal of Advances in Mechanical and Civil Engineering (IJAMCE) , pp. 131-134, Volume-4,Issue-3

Abstract : Spur dikes are river training structures used to prevent erosion by decreasing the flow velocity and to control sediment transfer. Prediction of the scour volume and scour geometry plays an important role in aquatic habitats. In this study, the effect of spur dike parameters and sediment gradation on the scouring process were investigated. Experiments were performed in a rectangular straight open channel, under steady flow conditions. The spur dike’s orientation angles, spur dike length, and the base material were main variables in the experimental study. Seven different discharges, three different spur dike lengths, three different spur dike orientation angles, and two different base materials were selected for the experiments. Flow depths and velocities were calculated for every single discharge in order to provide clear water conditions. Experimental findings were compared with the findings in the literature. Results show that the interaction between spur dike length and orientation angle is different for uniform and nonuniform sediments. A statistical model was developed in order to see the effects of changing experimental conditions on the scouring process. Nonlinear multiple regression analysis was performed and two equations were suggested to predict the scour volume. Dimensional analysis were done to specify the input parameters of regression model. Key words- Open channel, spur dike, river restoration, sediment, clear water scour

Type : Research paper

Published : Volume-4,Issue-3


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