Journal of Changjiang River Scientific Research Institute ›› 2025, Vol. 42 ›› Issue (1): 11-19.DOI: 10.11988/ckyyb.20231083

• River-Lake Protection and Regulation • Previous Articles     Next Articles

Research Progress on Flow Characteristics and Water Safety at River Confluences

LI Dian1,2(), PENG Zhen-yang2,3, LIU Guo-qiang2,3, WEI Chen-yu4(), LI Ying-xi1   

  1. 1 Changjiang Institute of Survey, Planning, Design and Research Cooperation, Wuhan 430010, China
    2 Key Laboratory of Basin Water Security in Hubei Province, Wuhan 430010, China
    3 Changjiang Survey, Planning, Design and Research Co., Ltd., Wuhan 430010, China
    4 School of Water Resources and Hydropower, Wuhan University, Wuhan 430072, China
  • Received:2023-10-07 Revised:2024-02-19 Published:2025-01-01 Online:2025-01-01
  • Contact: WEI Chen-yu

Abstract:

River confluences are areas where environmental elements such as flow structures, sediment deposition, water quality, and organisms undergo significant changes in river networks, and are the key nodes for flooding and pollutant transport. This review summarizes the basic characteristics of flow structures and pollutant transport at river confluences and their responses to different conditions, along with the important impacts of complex flow structures and habitats on water safety issues in previous field measurements, laboratory experiments, numerical simulations, and theoretical studies. Future research should focus on enhancing the understanding of the hydraulic characteristics of river confluences under unsteady flow conditions, further clarifying the response mechanisms between pollutant transport and hydraulic parameters, and improving the flood safety and the water ecological environmental quality through the combination of engineering layout and hydraulic optimization and regulation.

Key words: river confluences, flow structures, pollutant transport, water safety

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