Based on WRF model with the function of assimilating real-measured meteorological data and SWAN-FVCOM model with MCT real-time coupling, the numerical simulation has been made for the wind, wave and tidal current being affected by typhoon Muifa. In comparison with real-measured results, the numerical simulation results show the typhoon track, typhoon field and wave field well. In addition, the design wave value of 50y return period has been compared with the wave characteristics of the sea area near Dalian coastal structure damaged by typhoon Muifa. It is proposed to study further long-period wave in the design of wave factors for China eastern coast which is impacted by typhoon.%利用具有实测气象资料同化功能的WRF模型和MCT实时耦合SWAN-FVCOM模式，对“梅花”台风过程的风、浪、流进行数值模拟，计算结果与实测结果对比表明，数模结果能较好描述台风路径、台风风场以及波浪场。将台风期间大连损毁海岸工程附近海域波浪特征与50年一遇设计波浪进行了对比，建议在我国东部沿海受台风影响的沿岸设计波浪要素的确定中进一步加强对较长周期波浪的研究。
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