| 甬江及口外海域潮流泥沙数值模拟 |
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| 引用本文： | 蒯 宇,陶建峰,张 青,张长宽.甬江及口外海域潮流泥沙数值模拟[J].水运工程,2017(7):58-67. |
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| 作者姓名： | 蒯 宇 陶建峰 张 青 张长宽 |
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| 作者单位： | 河海大学 水文水资源与水利工程科学国家重点实验室， 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 水文水资源与水利工程科学国家重点实验室， 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,河海大学 港口海岸与近海工程学院， 江苏 南京 210098 |
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| 基金项目： | 国家自然科学基金（51620105005） |
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| 摘 要： | 建立了甬江河道及口外海域平面二维潮流泥沙数学模型,对2015年6月半个月的潮流场和悬沙场进行模拟,模拟结果与实测资料吻合良好。计算得到了研究区域洪季的余流场和输沙格局,结果表明:甬江口外余流整体由西北指向东南,河道余流指向下游;除口门局部水域,甬江口外输沙格局基本与余流场一致,悬沙经涨潮流的作用被带入甬江河道,致使河道内近口门处的输沙格局由口门向内;甬江口局部区域输沙格局与余流场存在差异的原因是悬沙输移与潮流运动存在时间上的滞后。
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| 关 键 词： | 甬江口 余流 悬沙输移 输沙格局 |
Numerical simulation on the tidal current and sediment for the Yongjiang River and out sea area |
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| KUAI Yu,TAO Jian-feng,ZHANG Qing and ZHANG Chang-kuan.Numerical simulation on the tidal current and sediment for the Yongjiang River and out sea area[J].Port & Waterway Engineering,2017(7):58-67. |
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| Authors: | KUAI Yu TAO Jian-feng ZHANG Qing and ZHANG Chang-kuan |
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| Institution: | State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China;College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China,State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China;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: | This paper presents a 2D tidal current and suspended sediment model which takes the Yongjiang River and the out sea area as the key research area.The model is adopted to carry out numerical simulation of tidal current and suspended sediment movement of half a month in the concerned area in June 2015.A good agreement is found between the observation data and computed results.Analysis on the computed residual current and sediment transport pattern in the flood season shows that the residual current generally causes transport from northwest to southeast in the out sea area,and seaward transport in the river.The sediment transport pattern is almost in accordance with the residual current pattern except local regions at the estuary.The sediment is transported into the Yongjiang River by the flood current and the net sediment transport direction near the estuary is towards the upstream.The local difference between the residual current and sediment transport patterns at the Yongjiang Estuary is because of the time lag between the tidal current and suspended sediment movement. |
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| Keywords: | Yongjiang Estuary residual current suspended sediment transport sediment transport pattern |
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