Through the two-dimensional mathematical model for flow based on triangular mesh, a numerical simulation of Qinhuangdao tourism artificial island project was carried out. The model reflected the main feature of a reciprocating flow along the shore in that sea area, and the principal axis of the flow direction was parallel with the bathymetric contour. The result of the model shows that:(1)the construction of the artificial island will only affect partial area around the artificial island. Shanhaiguan port and channel, Qinhuangdao port and channel are in the ve-locity reduction zone in east and west of the artificial island respectively. The inshore waters between Shanhaiguan port and Qinhuangdao Port are in the velocity increasing zone.(2)The location of the artificial island has a small impact on flow field. The variation of current speed is within 0.10 m/s. The flood and ebb current velocity are 0.09 m/s and 0.06 m/s, respectively.(3)Artificial island modeling has a smooth contour. The average flow rate of water-courses is within 0.36 m/s and the maximum velocity is 0.68 m/s.%建立基于三角形网格的二维潮流数学模型,对秦皇岛市旅游休闲人工岛工程开展了潮流数值模拟研究.所建模型反映了该海域往复流形式的运动特征,流向主轴与等深线基本平行.模型结果表明:(1)人工岛建设影响范围仅限于人工岛周围局部海域.山海关港区及航道、秦皇岛港区及航道分别处于人工岛东西两侧流速减小区域内,山海关港区与秦皇岛港区间近岸水域处于流速增大区域内.(2)人工岛位置对流场影响较小,流速变化基本控制在0.10 m/s以内.最大涨、落潮流速变化分别为0.09 m/s和0.06 m/s.(3)双鱼造型轮廓光滑,水道内平均流速控制在0.36 m/s以内,最大流速为0.68 m/s.
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