中文摘要：

应用FVCOM模型进行钱塘江涌潮的二维和三维数值模拟,并使用2007年10月大潮期间的现场观测结果进行模型验证。结果表明,平面二维模拟结果与实测值吻合较好,与基于Godunov算法求解钱塘江涌潮二维特征的结果基本一致。三维计算结果再现了流速在垂向上的差异,以及在落潮转向涨潮时刻,涨潮先从底部开始,垂向上从底层向表层逐步从落潮流转为涨潮流。敏感性分析显示模型网格大小和曼宁系数的选取对模拟结果有较大的影响。

英文摘要：

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.