本文基于有限体积海洋数值模式FVCOM,对辽东湾潮汐潮流进行数值模拟,得到了辽东湾的最大可能流速分布以及M2、S2、K1、O1分潮的潮流椭圆分布和潮致余流分布等,计算结果与实测资料符合较好。结果显示,辽东湾潮汐类型为不规则半日潮,潮流类型为规则半日潮流;最大可能流速的分布受水深和岸线等因素的影响,辽河口东侧最大可能流速达140cm/s;辽东湾顶部余流速度较大,在盖州滩以东水道M2分潮潮致余流最大流速达9cm/s,在盖州滩东南侧存在1个逆时针的余流涡,是控制辽河口径流携沙分布的重要动力要素。 In this paper, based on the finite volume ocean numerical model FVCOM, the tide tidal current in Liaodong Bay is numerically simulated and the maximum possible velocity distribution of Liaodong Bay and the distribution of tidal current ellipticity and tide caused by M2, S2, K1 and O1 tidal currents are obtained The result is in good agreement with the measured data. The results show that the tide type in Liaodong Bay is irregular half-day tide and the trend type is regular half-day tidal current. The distribution of maximum possible velocity is affected by factors such as water depth and shoreline. The maximum possible flow velocity is 140cm / s on the east side of Liaohe Estuary. The residual flow velocity is larger. The maximal flow rate of M2 tide-induced residual flow reaches 9 cm / s in the east channel of Gaizhou Beach. There is a counter-flow counter-current vortex on the southeastern side of Gaizhou Beach, Distribution of the important driving forces.