Evaluating how to control the sediments to be entered the intake channels in a 180-degree arc by the submerged plates

Articles in Press

Document Type : Original Article

Authors

1 Msc of Hydraulic Structure, Islamic Azad University, Shushtar Branch, Shushtar, Iran

2 professor assistant

Abstract

A method that is very helpful for controlling and reducing the sediments entering the intake is to use submerged plates. They are small walls made of metal, wood, etc., installed at a well-defined angle to the orientation of the water flow, creating a rotational flow surrounding themselves and removing the sediments from the intake opening, causing the ones entering the intake to be reduced. Among other benefits of these plates are their low cost and easy structure, which has converted the method to one of the top ones in different uses. In the current study, it has been tried the effect of variables such as the angle and rate of the plate distance by building an experiment model (〖180〗^°) to be investigated by a twisted radius of 3 and the intake location of 〖115〗^° with an intake angle of 〖45〗^° under various hydraulic conditions. The rate of the sediment entered into the intake increases with the rising dewatering debit rate, also regarding the best placement angle of plates, the angle of 〖15〗^° used to install the plates has a higher reduction rate of the sediment entered to the intake due to not avoiding passing the flow lines forward the intake and hitting less with them relative to other angles; also, the least sediment entered to the intake was observed in the distance rate of 0.2 (the rate of the transverse distance to the longitudinal distance of plates) due to the eddies producing, it can have the larger reduction ratio.

Keywords

Journal of Hydraulic and Water Engineering

Articles in Press, Accepted Manuscript
Available Online from 08 October 2024

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