首页 | 本学科首页   官方微博 | 高级检索  
     检索      

长江河口北支倒灌盐水输送机制分析
引用本文:吴辉,朱建荣.长江河口北支倒灌盐水输送机制分析[J].海洋学报,2007,29(1):17-25.
作者姓名:吴辉  朱建荣
作者单位:华东师范大学, 河口海岸学国家重点实验室, 上海, 200062
基金项目:国家自然科学基金 , 国家自然科学基金 , 教育部长江学者和创新团队发展计划
摘    要:基于三维数值模式ECOM-si,采用通量机制分析的方法,对长江河口北支倒灌盐水的输送机制进行了定量研究.模式计算了南北支分叉口和南支河段的潮平均单宽盐通量、各叉道上10个断面的潮平均盐通量和上述两者的机制分解项.基于计算结果讨论了北支倒灌盐水输送的动力机制,发现Lagrange余流输送和潮泵输送在倒灌盐水的输送中起主导作用.讨论了南支各叉道输送倒灌盐水的数量关系,给出了北支盐水倒灌输送的主要路径.

关 键 词:盐度输送    通量机制分析    倒灌    数值模拟    长江口
文章编号:0253-4193(2007)01-0017-09
收稿时间:2005/10/28 0:00:00
修稿时间:2005-10-282006-06-22

Analysis of the transport mechanism of the saltwater spilling over from the North Branch in the Changjiang Estuary in China
WU Hui and ZHU Jian-rong.Analysis of the transport mechanism of the saltwater spilling over from the North Branch in the Changjiang Estuary in China[J].Acta Oceanologica Sinica (in Chinese),2007,29(1):17-25.
Authors:WU Hui and ZHU Jian-rong
Institution:State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
Abstract:Based on the 3D numerical model,the transport mechanism of the saltwater spilling over from the North Branch in the Changjiang Estuary is analyzed quantitatively by use of the flux analysis method.The tidal averaged unit salt flux around the bifurcation of the South and North Branches and the transectional salt flux in each waterway together with their analysis constituents are calculated.Based on the model results the transport mechanism of the saltwater transport is discussed,and the Lagrange residual as well as the tidal pump are found as the main dynamic factors.The transectional salt flux in each waterway in the South Branch is compared,and then main transport course of saline water is discussed.
Keywords:salinity transport  flux mechanism analysis  saltwater spilling over  numerical simulation  Changjiang Estuary
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《海洋学报》浏览原始摘要信息
点击此处可从《海洋学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号