Experimental study about the local scour downstream of ogee spillway

The local scour formed in the bed of rivers because of the water action is a common phenomenon, and by the time became an important topic to study while designing and operating hydraulic structures. Because of the complexity of the topic, no specific methodology was developed to certainly predict the scour development profile, but the majority of the found results were specified by the operating conditions and based on experimental studies. The purpose of this study is to investigate the local scour depth downstream of the Ogee spillway model. The investigation has been conducted on a physical model at the hydraulic laboratory of Gaziantep University. Mainly, the study discusses the results of using baffle blocks in different conditions on the developing of the local scour downstream of the spillway. The experiments were carried out for different heights and number of blocks to find out their changing in the results under various discharges. Within the study boundaries, the height of blocks, at the first place, followed by the number of blocks lanes have been recognized to be the most effective factors on the results compared to the other variables of this study.