University of Tabriz Journal of Civil and Environmental Engineering 2008-7918 50 98 2020 05 21 Evaluation of the Performance of the Hydraulic Suction Method in Sediment Removal of Reservoirs Evaluation of the Performance of the Hydraulic Suction Method in Sediment Removal of Reservoirs 43 52 11126 10.22034/ceej.2020.11126 FA Mehdi Abasi Zade Bagheban Msc student in civil engineering, Jundi-Shapur university of Technology Dezful, Iran Babak Lashkar-Ara Department of Civil Engineering, Jundi-Shapur University of Technology Journal Article 2018 02 13 Siphon sediment dredging methods to solve the problem of sedimentation tanks have been widely studied in recent decades. These methods do not have some disadvantages, such as excess energy, stopping tank utilization, waste water, sediment drainage over lower carrying capacity, etc. In this article we tried to make a hydro-suction compartment with U-shaped bend and determining the lateral distribution of pressure inside it. We found the appropriate place for creating suction holes at the bottom of compartment and thanks to centrifugal force and secondary current escalation we could increase the Sediment Removal Efficiency. The study of library resources shows that the reinforcement of the secondary flow in a U-shaped bend with an abrupt opening with the aim of Sediment Removal of reservoirs has not been investigated. Siphon sediment dredging methods to solve the problem of sedimentation tanks have been widely studied in recent decades. These methods do not have some disadvantages, such as excess energy, stopping tank utilization, waste water, sediment drainage over lower carrying capacity, etc. In this article we tried to make a hydro-suction compartment with U-shaped bend and determining the lateral distribution of pressure inside it. We found the appropriate place for creating suction holes at the bottom of compartment and thanks to centrifugal force and secondary current escalation we could increase the Sediment Removal Efficiency. The study of library resources shows that the reinforcement of the secondary flow in a U-shaped bend with an abrupt opening with the aim of Sediment Removal of reservoirs has not been investigated. https://ceej.tabrizu.ac.ir/article_11126_a05ce37184e09bf6ab860a626738e4a9.pdf