本文从海洋三维原始动力学方程出发,考虑真实地形及(1/4)°×(1/4)°的水平网格,同时考虑黑潮和潮流,数值模拟黄海和东海的环流系统,主要结论是:1)模拟调和常数与分布于该区的81个台站的实测调和常数相比,日分潮振幅和位相的平均绝对误差分别为1.7cm和5.2°,半日分潮M_2振幅和位相的平均绝对误差分别为4.1cm和3.7°;2)模拟的黑潮路径与长期观测结果相吻合;3)黑潮进入研究区域后,一分支从台湾东北部分离出来后进入东海,影响可达29°N,这与海洋普查的调查结果以及文献中的结果一致;4)黑潮的一个分支北上形成对马暖流的一部分,且对马暖流是多源的,对马暖流通过对马海峡进入日本海,同时模拟结果显示一支由日本海进入研究区域的海流,后者需进一步调查和研究;5)黄海表层流主要沿南下方向,在近底层。中国和朝鲜的沿岸流为南下,黄海底层海盆由一顺时针方向的环流控制着,在中国成山头以外的北黄海底层,存在一较弱的逆时针环流。 In this paper, we consider the true topography and the horizontal grid of (1/4) ° × (1/4) °, considering the three-dimensional original dynamical equations of the oceans, considering the Kuroshio and tidal currents, and numerical simulation of the circulation system of the Yellow Sea and the East China Sea. The main conclusions Is: 1) Compared with the measured harmonic constant of 81 stations distributed in this area, the average absolute errors of the daily tidal amplitude and phase are 1.7cm and 5.2 °, respectively. The amplitudes and phases of M_2 The average absolute error is 4.1cm and 3.7 ° respectively; 2) The simulated Kuroshio path coincides with the long-term observation; 3) After the Kuroshio enters the study area, a branch separates from the northeast of Taiwan and enters the East China Sea with an impact of up to 29 ° N, which is consistent with the results of the marine census and the results in the literature. 4) A branch of the Kuroshio forms a part of the warm current to the north and is a multi-source to the warm current. The warm current flows through the Strait of Morse into Japan Simultaneously, the simulation results show a sea current entering into the study area by the Sea of ​​Japan, which needs further investigation and research. 5) The surface water current of the Yellow Sea is mainly in the south bottom direction and near the bottom. The coastal currents of China and North Korea are southward. The bottom of the Yellow Sea basin is controlled by a clockwise circulation. There is a weak anticlockwise circulation in the northern Yellow Sea submarine beyond China’s Chengshan Head.