摘要
基于CJK3D-WEM模型,建立长江口横沙港区数学模型,研究横沙港区形成后周边水域的水动力变化。结果表明:横沙港区方案实施后,各汊道断面分流比变化较小;南港河段、北槽中上段涨落急流速均有不同程度增加,北槽下段涨、落急流速略有减小,南港—北槽航道的落潮优势流略有变化,仍表现为明显的落潮优势;北港沿程落急流速变化较小,涨急流速北港口外段增加,其余区段减小。方案的实施对长江口拦门沙地区的总体河势格局不会产生明显影响。
The mathematical model of the Hengsha port area in at Yangtze Estuary is built based on the CJK3D-WEM model to study the changes of hydrodynamic force in water around the port after construction of Hengsha port.The result shows that after the implementation of port Hengsha scheme, the diversion ratio of each section has small changes. In the south channel, the fluctuating velocity in upper north channel increases to some extent, and that in the downstream north channel decreases slightly. The ebb current in the South-North Channel changes slightly and still shows obvious ebb along the north. The ebb velocity change is small, the maximum flood increases in north port estuary, and the remaining section decreases. The implementation of the project has a small influence on the river regime of the Yangtze Estuary sandbar area.
出处
《水运工程》
北大核心
2017年第6期104-112,125,共10页
Port & Waterway Engineering
基金
国家重点研发计划项目(2016YFC0401505)
上海市科学技术委员会科研计划项目(15DZ1202400)
国家自然科学基金青年基金项目(51509161)
