长江口北槽口外悬沙浓度垂线分布的数学模拟  

Numerical modelling of concentration profiles of suspended sediment in the Changjiang Estuary

作　　者：时钟[1] 周洪强[1] 

机构地区：[1]上海交通大学港口与海岸工程系,上海200030

出　　处：《海洋工程》2000年第3期57-62,共6页The Ocean Engineering

基　　金：国家自然科学基金!( 4 980 60 0 5 );国家教育部"跨世纪优秀人才培养计划"基金!(教技函 [1999] 2号 )

摘　　要：利用垂向一维悬沙运动数学模型 ,对长江口北槽口外大、中、小潮悬沙浓度垂线分布进行模拟 ,模拟结果同“六点法”实测值拟合较好。表明影响悬沙浓度垂线分布的主要因素为悬沙垂向扩散及絮凝沉降作用。A one dimensional vertical(1 DV) numerical model has been developed to predict the vertical distribution of the fine suspended sediment concentration during the spring tide, the moderate tide and the neap tide at the mouth of the North Passage in the Changjiang(Yangtze) Estuary. There is a good agreement between modeled and measured data. This suggests that the major factors affecting the vertical distribution of the fine suspended sediment at the mouth of the North Passage are the upward diffusion and the downward settling of fine suspended sediment flocs.

关 键 词：垂向一维数学模型 悬沙运动 长江口 

分 类 号：U658.93[交通运输工程—港口、海岸及近海工程]