Three-dimensional numerical modeling of tidal bore in Qiantang based on FVCOM
Three-dimensional numerical modeling of tidal bore in Qiantang based on FVCOM
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作者：
Wu Xiu-guang
本文采用FVCOM模型对钱塘江涌潮进行了数值模拟，模型的水深平均结果与实测资料吻合较好，这与Pan等的研究结果一致。（2007），采用Godunov格式的水深平均二维数值模式，三维数值模式再现了潮流的垂向分布特征和物理过程，以及落潮向涨潮转变时底层流速先增大的现象，数值试验表明，网格尺寸和曼宁系数对模式结果有较大影响。
In this contribution,the FVCOM model has been used to simulate the tidal bore in the Qiantang River.The depth-averaged 2-D model results agree well with the field data,which is consistent with the research of Pan et al.(2007),who used a depth-averaged 2-D numerical model based on a Godunov-type scheme.The 3-D model reproduced the vertical distribution characteristics of current velocities and the physical processes,and the phenomenon that when the ebb currents turn to flood currents,velocities at bottom increase first.Numerical experiments revealed that the cell size and manning coefficient could influence the model results to a large extent.