Author(s): Yu Kuai, Jianfeng Tao, Qing Zhang, Weiqiu Chen, Weiqi Dai
Linked Author(s): Yu Kuai
Keywords: Yongjiang Estuary, residual current, suspended sediment transport, sediment transport pattern
Abstract: A 2D tidal current and suspended sediment model which takes the Yongjiang River and the out sea area as the key research area are presented in this paper. The numerical model is employed to carry out the simulation of tidal hydrodynamics and sediment dynamics of the concerned area in the second half of June 2015. A good agreement is found between the in situ measured data and the simulated results. Analysis on the computed residual current and sediment transport pattern shows that, the residual current generally causes transport from northwest to southeast in the sea area, and seaward transport in the river. The sediment transport pattern is almost in accordance with the residual current pattern except local regions near the river mouth. The sediments are transported into the Yongjiang River by the flood current and the net sediment transport is landward near the river mouth. The local distinctions between the residual current and sediment transport pattern at the Yongjiang Estuary are due to the time lag between the hydrodynamic and sediment transport processes
Year: 2017