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摘要:
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首先将Smagorinsky亚网格模型引入ADCIRC模型求解涡粘系数,使模型在模拟近岸潮流方面更加合理。为了进一步阐明黄骅港海域泥沙运动规律,将改进后的ADCIRC模型应用于黄骅海域,分别对纯潮流和大风天情况下潮流运动进行了数值模拟。研究表明,由于建筑物影响,建港后海域的流场发生了较大变化,建港后港口海域水流的离岸运动得到加强。风对黄骅海域流场的影响较大,在NE向8级风条件下,沿岸流和离岸流较明显,这可能是导致航道强淤的重要因素之一。
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For more reasonable simulation of coastal tidal current, the Smagorinsky subgrid model is embedded into the ADCIRC model to get the horizontal eddy viscosity. For a further investigation of sediment movement in the coastal area around Huanghua Port, the improved model is applied to simulate the tidal current. The tidal current with strong wind and without wind was both simulated. The result showed an obvious change of the current field after the construction of the harbor and the offshore current is enhanced after the project. Wind shows a significant influence on the current field. Under the condition of northeast wind of force 8, both alongshore current and offshore current are obvious, which may be an important reason of severe siltation in the outer navigation channels of Huanghua Port.
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参考文献:
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