摘要
以东大港潮流水道4号站位的水、沙实测资料为例,利用悬沙通量机制分解法、功率谱分析法,对东大港潮流水道悬沙输移的动力机制进行分析探讨.结果表明,悬沙净输移以平流作用占优,“潮泵效应”项在悬沙输移中也相当重要;潮流流速是水体含沙量变化及悬沙输移的主要动力因素.
Based on water and sediment data for station No. d of Dongdagang tidal channel, a discussion was made on the mechanism of suspended sediment transport in the channel by use of the mechanism decomposition method and spectral analysis method.The result shows that the advection is the main factor to affect the suspended sediment transport, and the tidal pumping effect also plays an important role. Meanwhile, the current velocity is an important dynamic factor on variation of sediment concentration in water boby and suspended sedliment transport.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第2期216-222,共7页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金重点资助项目(50339010)
国家自然科学基金资助项目(40476039)
关键词
辐射沙洲
潮流水道
机制分解
谱分析
radial sand ridge
tidal channel
mechanism decomposition
spectral analysis
