论文部分内容阅读
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。
The two-dimensional tidal current mathematical model based on triangular grid is established, and the numerical simulation of tidal current is carried out on the tourism and leisure artificial island project in Qinhuangdao. The model reflects the motion characteristics of the reciprocating flow in the sea area, and the flow axis is basically parallel to the isobath. The results of the model show that: (1) The construction scope of the artificial island is limited to some sea areas around the artificial island. The Shanhaiguan port area and waterway, Qinhuangdao port area and the waterway are respectively located in the reduced flow area on the east and west sides of the artificial island, and the nearshore waters between the Shanhaiguan port area and Qinhuangdao port area are in the area of increasing velocity. (2) The position of artificial island has little influence on the flow field, and the change of flow rate is basically controlled within 0.10 m / s. The maximum rise and fall ebb flow rates were 0.09 m / s and 0.06 m / s, respectively. (3) The shape of Pisces is smooth, the average flow velocity in the water channel is controlled within 0.36 m / s and the maximum flow rate is 0.68 m / s.