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潮汐河口宽浅弯道的水流动力特性分析*
引用本文:张俊勇,吴华林,赵德招.潮汐河口宽浅弯道的水流动力特性分析*[J].水运工程,2013(11):119-123.
作者姓名:张俊勇  吴华林  赵德招
作者单位:上海河口海岸科学研究中心,河口海岸交通行业重点实验室,上海 201201;交通运输部长江口航道管理局,上海 200003;上海河口海岸科学研究中心,河口海岸交通行业重点实验室,上海 201201;上海河口海岸科学研究中心,河口海岸交通行业重点实验室,上海 201201
基金项目:国家自然科学基金(51209135)
摘    要:以长江口北槽河道为例,以大量实测资料为基础,分析潮汐河口宽浅弯道的水流动力特性及演变特征,探讨 北槽航道回淤集中于弯道段与潮汐河口宽浅弯道演变的关联性。研究成果表明,尽管受多种因素干扰以及河槽较强的二维 性,潮汐河口弯道仍呈现了一定程度弯道水流特征和演变特征,北槽中部航槽的弯道形态可能对航道回淤起到一定的促进 作用。

关 键 词:潮汐河口    宽浅弯道    航道回淤    水流动力特性

Flow dynamics characteristics of wide-shallow tidal estuary meandering river
ZHANG Jun-yong,WU Hua-lin and ZHAO De-zhao.Flow dynamics characteristics of wide-shallow tidal estuary meandering river[J].Port & Waterway Engineering,2013(11):119-123.
Authors:ZHANG Jun-yong  WU Hua-lin and ZHAO De-zhao
Institution:Key Laboratory of Estuarie & Coastal Engineering, Ministry of Transports, Shanghai Estuarine and Coastal Research Center, Shanghai 201201, China;Yangtze Estuary Waterway Administration Bureau, Shanghai 200003, China;Key Laboratory of Estuarie & Coastal Engineering, Ministry of Transports, Shanghai Estuarine and Coastal Research Center, Shanghai 201201, China;Key Laboratory of Estuarie & Coastal Engineering, Ministry of Transports, Shanghai Estuarine and Coastal Research Center, Shanghai 201201, China
Abstract:Taking the north passage of the Yangtze River estuary for example and based on a large number of field measured data, we analyze the flow dynamics characteristics and evolution characteristics on the wide-shallow tidal estuary meandering river and explore the relationship between the fact of silting concentration in the bend section of the north channel and the evolution of wide-shallow tidal estuary meandering river. The result shows that despite the disturbance of multiple factors and the strong two-dimensional characteristics of the channel, the tidal estuary meandering river still presents bend flow characteristics and characteristics of evolution to a certain degree. The bend on the middle north channel may promote silting concentration.
Keywords:tidal estuary  wide-shallow meandering river  silting  flow dynamics characteristics
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