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NUMERICAL MODELING OF HYDRODYNAMIC AND SEDIMENT SILTATION DUE TO TYPHOON IN ESTUARY CHANNEL REGULATION

Abstract

Oujiang Estuary is a complex tidal estuary with many channels and shoals in the East China Sea, which was affected by typhoon frequently. The navigation channel of Wenzhou Port is located in the north branch of Oujiang Estuary, which happened serious sediment siltation in many times due to typhoon impact. The regulation is considered to decrease siltaion of the channel and protect shoals as well. According to the site survey data, the mathematic model is established and validated, which simulates the hydrodynamic, sediment transport and channel siltation due to typhoon in Oujiang Estuary. The channel regulation scenario is studied by the model simulation after analysis of the silation character. It indicates that the high concentration sediment from shoals north of channel is main sediment source caused siltation in the channel, which can be prevented into the channel by the regulation scenario and decrease siltation efficiently.

Keywords:

Oujiang Estuary, numerical model, channel regulation, sediment siltation, typhoon

Details

Issue
Vol. 22 No. S1(86) (2015)
Section
Latest Articles
Published
15-10-2015
DOI:
https://doi.org/10.1515/pomr-2015-0034
Licencja:
Creative Commons License

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

Open Access License

This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.

 

Authors

  • Hongbo Zhao

    Tianjin University, School of Civil Engineering; Tianjin Research Institute for Water Transport Engineering, Key Laboratory of Engineering, Sediment of Ministry of Transport
  • Qinghe Zhang

    Tianjin University, School of Civil Engineering
  • Mingxiao Xie

    Tianjin Research Institute for Water Transport Engineering, Key Laboratory of Engineering Sediment of Ministry of Transport

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