<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Parallel skimming walls are regarded as one of the more efficient methods for controlling inlet sediment to a lateral intake. The present study attempts to experimentally scrutinize the impact of the angles of parallel skimming walls (θ), the corresponding distance (b), and the discharge variations of the main channel of the inlet sediment for the control of an intake. First, the impacts of parallel skimming walls incorporating three angles (θ = 0°, 15°, 30°), located in the front section of the intake and the distance between the walls (b=10 cm, 20 cm, 30 cm), were studied. A dimensional analysis showed the dimensionless extraction ratios and the relation between the variables in a laboratory. The results indicate that parallel skimming walls lead to average decreases of 69%, 41% and 26% in the amount of inlet sediment to the intake, for walls with angles of 0°, 15° and 30°, respectively. With regard to the distance between the walls, average decreases of 58%, 70% and 86% were observed for walls with placement distances of b/H=2.5, b/H=5 and b/ H=7.5, respectively.</p></abstract>

Parallel skimming walls are regarded as one of the more efficient methods for controlling inlet sediment to a lateral intake. The present study attempts to experimentally scrutinize the impact of the angles of parallel skimming walls (θ), the corresponding distance (b), and the discharge variations of the main channel of the inlet sediment for the control of an intake. First, the impacts of parallel skimming walls incorporating three angles (θ = 0°, 15°, 30°), located in the front section of the intake and the distance between the walls (b=10 cm, 20 cm, 30 cm), were studied. A dimensional analysis showed the dimensionless extraction ratios and the relation between the variables in a laboratory. The results indicate that parallel skimming walls lead to average decreases of 69%, 41% and 26% in the amount of inlet sediment to the intake, for walls with angles of 0°, 15° and 30°, respectively. With regard to the distance between the walls, average decreases of 58%, 70% and 86% were observed for walls with placement distances of b/H=2.5, b/H=5 and b/ H=7.5, respectively.

Experimental Study on the Placement of the Angle and the Distance of Parallel Skimming Walls to Reduce Inlet Sediment in a Lateral Intake

Department of Civil Engineering, Faculty of Engineering

Slovak Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Parallel skimming walls are regarded as one of the more efficient methods for controlling inlet sediment to a lateral intake. The present study attempts to...

Experimental Study on the Placement of the Angle and the Distance of Parallel Skimming Walls to Reduce Inlet Sediment in a Lateral Intake

Online veröffentlicht: 06. Juli 2020

Seitenbereich: 23 - 29

DOI: https://doi.org/10.2478/sjce-2020-0011

Schlüsselwörter
LateralIntake, River Engineering, Sediment Control, Skimming Walls

© 2020 Sadegh Farshidnia et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Experimental Study on the Placement of the Angle and the Distance of Parallel Skimming Walls to Reduce Inlet Sediment in a Lateral Intake

Online veröffentlicht: 06. Juli 2020

Seitenbereich: 23 - 29

DOI: https://doi.org/10.2478/sjce-2020-0011

SchlüsselwörterLateralIntake, River Engineering, Sediment Control, Skimming Walls

© 2020 Sadegh Farshidnia et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Schlüsselwörter
LateralIntake, River Engineering, Sediment Control, Skimming Walls