Numerical Analysis of Current Characteristics In Submerged Tidal Inlet Off Jiangsu Coasts
Numerical Analysis of Current Characteristics In Submerged Tidal Inlet Off Jiangsu Coasts
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发表时间：
2011
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通讯作者：
Jinhai Zheng;Yinghui Zhao;P. Liu;Kefeng Chen;C. Tang
中科院分区：
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作者：
Jinhai Zheng;Yinghui Zhao;P. Liu;Kefeng Chen;C. Tang
小庙红水道是江苏沿海辐射沙洲最南端的一个水下潮汐通道。在其开发过程中，需要解决对复杂水流特征和河道地形演变趋势的认识问题。利用二维潮流模型，对该海域的水动力特性、涨、落潮历时、流速及余流进行了详细的分析计算。数值分析表明，在进口段，南、南南水道呈现落潮主导、落潮余流型，而北、中、南北水道则呈现相反的特征，这与小庙洪水道目前南冲北淤的动力平衡形态相一致。
Xiaomiaohong Waterway is a submerged tidal inlet in the southernmost site of radial sand ridges off Jiangsu coasts in China. During its development process, the recognition on the complex current characteristics and evolution trend of channel topography should be solved. With two-dimensional tidal current model, the hydrodynamic characteristics, duration and velocity of the flood and ebb tide, and the residual current are analyzed and calculated in detail. Numerical analysis shows that in the entrance section, the South and South-S channels present the type of ebb tide predomination and ebbing residual current; however, the North, Middle, and South-N channels present the opposite characteristics, which is in concordance with the present dynamic equilibrium morphology with erosion in south and deposition in north in Xiaomiaohong Waterway.