长江口北槽口外细颗粒悬沙沉降速度  

Settling Velocity of Fine Suspended Sediment in the Changjiang Estuary

作　　者：时钟[1] 朱文蔚[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：《上海交通大学学报》2000年第1期18-23,共6页Journal of Shanghai Jiaotong University

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资助项目!(教技函 [1999] 2号 )

摘　　要：提供了一种计算长江口外细颗粒悬沙沉降速度的方法.利用流速仪和声学悬浮泥沙观测系统,获得了长江口北槽口外大潮水流、悬沙浓度垂线分布资料.采用落憩时刻(1100h)的悬沙浓度7条垂线分布资料,通过Rouse公式拟合,计算了与悬沙浓度垂线分布曲线相对应的细颗粒悬沙沉降速度,计算结果相对集中于3.0～4.Vertical profiles of fine suspension concentration were measured by using an acoustic suspended sediment monitor at the North Passage of the Changjiang Estuary. Vertical profiles of fine suspension concentration at high slack tide (1100 h) were fit by the Rouse equation in order to calculate the settling velocities of fine suspended sediments. The calculated settling velocities range from 3.0 to 4.0 mm/s.

关 键 词：细颗粒悬沙 沉降速度 长江口 

分 类 号：TV148.1[水利工程—水力学及河流动力学]