Unveiling the Dynamics of Hydrosuction Sediment Removal: Insight into Flow Characteristics, Flow Profile, and Critical Suction Velocity
Publication: Journal of Hydraulic Engineering
Volume 150, Issue 5
Abstract
This study aimed to investigate the critical suction velocity required for lifting sediment off the bed under hydrosuction. Flow characteristics below the suction pipe under unbound and bound conditions were studied experimentally and numerically, and the effects of various parameters on the critical suction velocity, such as suction pipe diameter, suction discharge, suction inlet height, and sediment size, were investigated. The results showed all the parameters significantly affect the critical suction velocity, with suction inlet height being the most influential. Unbound and bound conditions yielded divergent flow characteristics beneath the suction pipe, revealing distinct flow patterns. Interdependency among the parameters affecting critical suction velocity have been studied statistically, and empirical relations are developed to compute the critical suction velocity, its resultant centerline velocity, and the associated flow profile. A proposed relation for critical suction velocity showcased a error margin, while equations computed resultant centerline velocities and flow profiles with accuracy, representing satisfactory agreement. These findings can also be helpful in designing efficient suction systems in various sediment-laden water environments.
Practical Applications
The current study on hydrosuction sediment removal presents practical solutions for addressing the persistent challenge of reservoir sedimentation. Hydrosuction is an efficient and cost-effective method of sediment removal with minimum disturbance to the connecting structures and surrounding ecosystem and aquatic life, ensuring sustainable reservoir management. The study focuses on providing detailed insight into the behavior of the flow below the suction pipe under varying conditions, which is responsible for sediment movement during hydrosuction. The study also investigates the minimum suction velocity required to lift the sediment off the bed surface. Applicability of hydrosuction is not limited to the desilting of a reservoir; it also holds potential for various applications in multiple fields, such as river and canal restoration, dredging of navigational channels, irrigation canal cleaning, dewatering and slurry removal, contaminant cleanup, trench excavation, flood control, and wastewater management.
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Data Availability Statement
The relevant information about this study and the experimental data is in the tables and figures in the paper. All data, models, or codes that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
We express deep gratitude and sincere thanks to the Department of Water Resources Development and Management, IIT Roorkee, and the Civil Engineering Department, IIT Roorkee, for providing a conducive environment and resources to conduct the research and analysis work.
Author contributions: The authors of this paper have made significant contributions to its development. The corresponding author, Mr. Akash Jaiswal, conducted the experimental work, collected and analyzed the data, and drafted the manuscript. Meanwhile, the other authors, Professor Zulfequar Ahmad and Professor Surendra Kumar Mishra, provided valuable guidance, assisted with data analysis, and played a crucial role in finalizing the manuscript. All the authors’ contributions were integral to the successful completion of this work.
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Information
Published In
Journal of Hydraulic Engineering
Volume 150 • Issue 5 • September 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Aug 13, 2023
Accepted: Apr 26, 2024
Published online: Jul 5, 2024
Published in print: Sep 1, 2024
Discussion open until: Dec 5, 2024
ASCE Technical Topics:
- Bodies of water (by type)
- Coasts, oceans, ports, and waterways engineering
- Continuum mechanics
- Engineering fundamentals
- Engineering mechanics
- Flow (fluid dynamics)
- Flow profiles
- Fluid dynamics
- Fluid mechanics
- Fluid velocity
- Hydraulic engineering
- Hydraulic structures
- Hydrologic engineering
- Infrastructure
- Mathematics
- Parameters (statistics)
- Pipe sizes
- Pipeline systems
- Pipes
- River engineering
- Sediment
- Statistics
- Structural engineering
- Structures (by type)
- Suction
- Velocity profile
- Water and water resources
- Water management
- Waterways
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