Critical criteria for sediment suspension derived from suspension probability

IF 5.1 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-03-10 DOI:10.1016/j.jestch.2025.102034

Lixia Sun , Zhongwu Jin , Zhilin Sun , Guiying Shen , Haolei Zheng , Chao Guo , Lingyun Li

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引用次数: 0

Abstract

The critical criterion of sediment suspension is a key problem in hydraulic engineering, environmental protection and coastal engineering, which plays a significant role in the numerical computations of suspended sediment motion. This study explored the critical suspension for nonuniform sediment through theoretical derivation and flume experiments. First, two criteria were proposed based on the suspension probability from the perspectives of dynamics and kinematics, respectively. Then, the flume experiment was conducted with nonuniform dyeing sediment and a high-speed camera. Finally, the criteria were verified by the experimental data and compared with several other criteria. It was found that the two criteria of dynamics and kinematics are functions of relative suspension velocity and suspension parameters, respectively. The interaction coefficient of nonuniform sediment is introduced into the two criteria and reflected in the suspension and settling velocities, respectively. The result of this study is a step forward in theory compared with the critical criterion of uniform sediment suspension.

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来源期刊

Engineering Science and Technology-An International Journal-Jestech Materials Science-Electronic, Optical and Magnetic Materials

CiteScore

11.20

自引率

3.50%

发文量

153

审稿时长

22 days

期刊介绍： Engineering Science and Technology, an International Journal (JESTECH) (formerly Technology), a peer-reviewed quarterly engineering journal, publishes both theoretical and experimental high quality papers of permanent interest, not previously published in journals, in the field of engineering and applied science which aims to promote the theory and practice of technology and engineering. In addition to peer-reviewed original research papers, the Editorial Board welcomes original research reports, state-of-the-art reviews and communications in the broadly defined field of engineering science and technology. The scope of JESTECH includes a wide spectrum of subjects including: -Electrical/Electronics and Computer Engineering (Biomedical Engineering and Instrumentation; Coding, Cryptography, and Information Protection; Communications, Networks, Mobile Computing and Distributed Systems; Compilers and Operating Systems; Computer Architecture, Parallel Processing, and Dependability; Computer Vision and Robotics; Control Theory; Electromagnetic Waves, Microwave Techniques and Antennas; Embedded Systems; Integrated Circuits, VLSI Design, Testing, and CAD; Microelectromechanical Systems; Microelectronics, and Electronic Devices and Circuits; Power, Energy and Energy Conversion Systems; Signal, Image, and Speech Processing) -Mechanical and Civil Engineering (Automotive Technologies; Biomechanics; Construction Materials; Design and Manufacturing; Dynamics and Control; Energy Generation, Utilization, Conversion, and Storage; Fluid Mechanics and Hydraulics; Heat and Mass Transfer; Micro-Nano Sciences; Renewable and Sustainable Energy Technologies; Robotics and Mechatronics; Solid Mechanics and Structure; Thermal Sciences) -Metallurgical and Materials Engineering (Advanced Materials Science; Biomaterials; Ceramic and Inorgnanic Materials; Electronic-Magnetic Materials; Energy and Environment; Materials Characterizastion; Metallurgy; Polymers and Nanocomposites)