| 闽江河口三维潮流数值模拟及特性分析 |
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| 引用本文： | 夏泽宇,蔡 辉,谭 亚.闽江河口三维潮流数值模拟及特性分析[J].水运工程,2017(6):57-64. |
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| 作者姓名： | 夏泽宇 蔡 辉 谭 亚 |
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| 作者单位： | 河海大学 港口海岸与近海工程学院，江苏 南京 210098,河海大学 港口海岸与近海工程学院，江苏 南京 210098,河海大学 港口海岸与近海工程学院，江苏 南京 210098 |
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| 摘 要： | 基于FVCOM(Finite-Volume Coastal Ocean Model)模型，建立了闽江河口区域精细化的三维潮流数值模型。对模型的海底摩阻系数的选取进行讨论，得出Koutitas公式更为合理的结论。采用该模型对闽江口的潮汐、潮流特征进行分析，得出以下结论：闽江外海潮波自东南至西北向近岸区域传播，水道内潮流有明显的往复流性质；熨斗岛北部和东部区域，潮流多以旋转流为主；闽江北支水道以落潮流为主，河口区域三维流场在侧向支流影响区域分层不明显。
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| 关 键 词： | FVCOM模型 潮流 闽江河口 摩阻系数 |
3D numerical simulation and analysis of character of tidal currents in Minjiang Estuary |
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| XIA Ze-yu,CAI Hui and TAN Ya.3D numerical simulation and analysis of character of tidal currents in Minjiang Estuary[J].Port & Waterway Engineering,2017(6):57-64. |
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| Authors: | XIA Ze-yu CAI Hui and TAN Ya |
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| Institution: | College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China,College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China and College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China |
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| Abstract: | Based on the FVCOM(Finite-Volume Coastal Ocean Model)model,a detailed 3D tidal current numerical model of Minjiang Estuary area is established.The selection of subsea drag coefficient is discussed,and the conclusion of Koutitas formula is more reasonable.The tidal and tidal current characteristics of Minjiang Estuary are analyzed by using this model.It is concluded that:Minjiang tidal wave spreads from the southeast to the northwest to the estuary area,and the flow within the channel has obvious reciprocating flow characteristics.Tidal current mostly tend to rotating flow-based in north and east of the Yundou island.The north branch of the Minjiang river is dominated by falling tide,and the 3D flow field in estuary area is not obvious in the influence area of lateral tributaries. |
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