田横岛、绿岛码头建设对附近水域水动力影响数值研究

NUMERICAL STUDY ON THE IMPACT OF WHARF CONSTRUCTION ON GREEN ISLAND AND TIANHENG ISLANDS ON THE LOCAL HYDRODYNAMIC ENVIRONMENT

利用有限元方法 ,建立了崂山头至古龙咀连线以西海域二维潮流数值计算模式 ,数值模拟了田横岛、绿岛码头建成后对附近水域水动力的影响 ,数值模拟结果表明 :码头建成前后流场分布在离码头区500m以外几乎无变化 ,在码头附近除围海造田减少了部分海域面积外码头周围水域流场有变化 ,其最大量值减少范围500m外流速小于1.73cm/s、余流小于0.44cm/s,而流速方向角变化范围小于8.1°、余流小于12.8°。最大流速发生时刻基本没有变化。

A two dimension tidal current numerical model was constructed using the finit e element method. The calculation field was the sea area west of the line from Laoshantou to Gulongzui. The effect of wharfs completion on Tianheng island and Green islands on the surrounding hydrodymic environment was humerrcally modeled. Results of the numerical simulation indicate that the distribution of the tidal current field beyond 500 meters will experience no major changes as a result of wharf construction. The area immediatly around the wharf will see small changes caused by overall reduction of sea_area. The maximum reductions were found to b e; current velocity less than 1.73 cm/s, residual current velocity less than 0.4 4 cm/s. Change to the current direction angle was less than 8.1 degrees and the residual current direction was less than 12.8 degrees. The was basically unchang ed.