Investigation of Numerical Modeling to Modify The Geometric Structure of Submerged Plates in The Management of Diversion Sediment to the Lateral Catchment Using CCHE 2D Software

Subject Areas : hydraulic structures

AMIN JOOBAND ¹ , MOHAMMAD HOSSEIN PURMOHAMMADI ²

1 - Department of Civil engineering, Shooshtar Branch, Islamic Azad University, Shooshtar, Iran
2 - Department of Water Sciences, Shooshtar Branch, Islamic Azad University, Shooshtar, Iran

Received: 2020-09-18 Accepted : 2020-09-23 Published : 2020-09-20

Keywords: Structure modification, Submerged plates, Lateral catchment, Sediment management,

Abstract :

Due to the expansion of the use of water resources, the use of water transfer structures is increasing day by day. Due to the sedimentation of sediments and their movement in water transfer structures, they are damaged. Therefore, scientists decided to use different methods to control sediments. One of these methods is the use of submerged plates. These plates act in a way that directs the sediments along the direction of the flow and reduces the sediment entering the reservoirs. In this study, we try to investigate the use of modified plate shapes by numerical modeling with CCHE 2D software in a laboratory model and its effect on the management of diversion sediment to the lateral catchment. In this study, we used 5 different shapes, one of which is a simple rectangular plate as a control that other plates have been compared with this plate without using submerged plates. Sediment to the lateral reservoir is effective. The present study investigated the simulation of a laboratory flume with a 60 degree reservoir and an average sediment particle size of 1.59 mm with four landings of 0.45, 0.55, 0.6 and 0.66.