Influence of Tidal Gate on Hydrodynamic and Sedimentary Environment

Abstract:

Effect on hydrodynamic and sedimentary environment is the key problem of gate construction at tidal estuaries. It cites an instance with the gate of HY River in Sanmen Bay. Based on analyzing the character of the water and sediment, the 2D mathematical model was established. Based on triangle grid and finite volume method, the shallow flow model is examined by 10 tidal level stations and 11 observed synchronous vertical lines. And the comparison between computed result and measured solution demonstrates very good agreement. Though this model, the variation of hydrodynamic law has been studied for the HY gate building. Combining the empirical formulas and fluvial processes analyses, it predicted the sediment siltation law and features of gate construction. And the effect of the key sensitive point has been discussed mainly. The result shows that the tidal flow capacity of downstream area is reduction, and siltation at downstream area of tidal gate. It provides the scientific foundation for the construction of the gates.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 3434-3438
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.3434
• Online since: August 2013
• Authors: Jin Bin Mu, Shi Chang Huang
• Keywords: Hydrodynamic, Mathematical Models, Sedimentary Environment, Tidal Estuary

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