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6 May 2022 Numerical simulation of suspended sediment transport and diffusion in channel dredging project
Cui Wang, Jie Zhang, Jianping Hou
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Proceedings Volume 12256, International Conference on Electronic Information Engineering, Big Data, and Computer Technology (EIBDCT 2022); 122561Z (2022) https://doi.org/10.1117/12.2635403
Event: 2022 International Conference on Electronic Information Engineering, Big Data and Computer Technology, 2022, Sanya, China
Abstract
During the dredging process, suspended sediment will increase rapidly in the sea area and affect the surrounding marine ecosystem. Therefore, studying the transport and diffusion of suspended sediment in dredging project has important reference significance for marine ecological environment protection and ecological impact assessment. Based on MIKE hydrodynamic and sediment transport module, the suspended sediment diffusion during the construction of Shuangyu Island channel dredging project in Zhangzhou is simulated. The results show that the diffusion range and morphology of suspended sediment are mainly controlled by tidal current, and the total envelope area of suspended sediment concentration over 10 mg/L is about 4.38 km2 during the whole construction period. When antifouling curtain is added to the dredger, the total envelope area of suspended sediment concentration over 10 mg/L is about 3.56 km2. The diffusion of suspended sediment (>10mg/L) will affect the nearby recreational areas and aquaculture, and have a certain impact on the Marine environment. The results can provide scientific basis for quantitative calculation of biomass loss and ecological compensation caused by suspended sediment.
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Cui Wang, Jie Zhang, and Jianping Hou "Numerical simulation of suspended sediment transport and diffusion in channel dredging project", Proc. SPIE 12256, International Conference on Electronic Information Engineering, Big Data, and Computer Technology (EIBDCT 2022), 122561Z (6 May 2022); https://doi.org/10.1117/12.2635403
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KEYWORDS
Diffusion
Oceanography
Numerical simulations
3D modeling
Motion models
Environmental management
Mathematical modeling
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