| 长江口潮波传播影响因素探讨 |
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| 引用本文： | 路川藤,罗小峰,陈志昌.长江口潮波传播影响因素探讨[J].海岸工程,2011,30(1):29-35. |
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| 作者姓名： | 路川藤 罗小峰 陈志昌 |
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| 作者单位： | 1. 南京水利科学研究院,江苏南京,210024
2. 南京水利科学研究院,江苏南京,210024;水文水资源与水利工程科学国家重点实验室,江苏南京,210024 |
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| 摘 要： | 在河口潮波计算假定的基础上,概化长江口崇明岛南侧水域,建立了三种概化模型,探讨影响长江口潮波传播的因素.计算表明,潮波传播是地形、河口平面形状和底摩阻共同作用的结果,河口平面收缩对潮波传播影响最大,其次为河床底摩擦作用,然后是河口断面面积变化.
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| 关 键 词： | 长江口 潮波 概化模型 |
Discussion on Factors Effecting Tidal Wave Propagation in Yangtze Estnary |
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| LU Chuan-teng,LUO Xiao-feng,CHEN Zhi-chang.Discussion on Factors Effecting Tidal Wave Propagation in Yangtze Estnary[J].Coastal Engineering,2011,30(1):29-35. |
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| Authors: | LU Chuan-teng LUO Xiao-feng CHEN Zhi-chang |
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| Institution: | 1. Nanjing Hydraulic Research Institue , Nanjing 210024, China; 2. State Key Laboratory of Hydrology Water Resources and Hydraulic Engineering, Nanjing 210024, China) |
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| Abstract: | Based on the assumptions for calculation of tidal waves in an estuary, the sim plified topographic outline is derived for the water area south of the Chongming Island in the Yangtze Estuary, and totally 3 models respectively corresponding to 3 kinds of sim- plified topographic outline representing the water area are set up to discuss the factors which exert effects on the tidal wave propagation there. It is learnt from the computing results that the tidal wave propagation is effected jointly by the topography, the plane geometric shape of the estuary, and the river bottom friction. The narrowing of the river width plays the most important role, the next comes the river bottom friction, and the third is the variability of the river cross section. |
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| Keywords: | Yangzte estuary tidal wave model for simplified topographic outline |
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