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基于N-S方程建立了风场与波浪非线性耦合作用下风暴潮数值预报模型。采用MM5中尺度数值预报计算模式得到所需风场数据,同时应用莆田站方法来预报风浪波要素,从而计算风暴潮影响因素风应力及波浪辐射应力。利用ADI差分格式离散控制方程。模拟了2007年3月份渤海湾一次风暴潮过程,分别计算了受风应力、波浪辐射应力及二者综合作用下的渤海湾海域风暴潮潮位及潮流过程,并将计算潮位与实测潮位资料作对比,得到风应力是渤海沿岸风暴潮的主要影响因素,而在波浪辐射应力作用下风暴潮潮位极值处的增水较为明显,且在地形与波浪辐射应力作用下渤海湾风暴潮潮流过程受到明显扰动的结论。
Based on the N-S equation, a numerical model of storm surge based on the nonlinear coupling of wind field and wave is established. MM5 mesoscale numerical prediction model was used to obtain the required wind field data. At the same time, the Putian station method was used to forecast the elements of wind and waves, so as to calculate the wind stress and wave radiation stress. Using ADI Difference Scheme to Discrete Control Equation. The storm surges in the Bohai Bay in March 2007 were simulated. The storm surge tide and the tidal current in the Bohai Bay sea area under wind stress, wave radiation stress and the combination of the two were calculated respectively. The calculated tidal level was compared with the measured tidal data , The wind stress is the main influence factor of the storm surges along the coast of Bohai Sea and the water surge at the extreme value of the storm surge tide under the wave radiation stress is more obvious. Under the influence of the terrain and wave radiation stress, the tide of the storm surge in Bohai Bay is obviously Disturbed conclusion.