摘要
采用瓯江口实测泥沙资料,对多个典型挟沙力公式进行了系统比较;对瓯江口同步的平均流速和平均含沙量进行分析,探讨适合该河口的挟沙力关系,并引入泥沙因子,考虑泥沙粒径对水流挟沙力的影响。结果认为:各挟沙力公式的计算结果过程曲线趋势一致,只是存在量级上的差别;结合实测泥沙资料进行分析,采用河口、海岸适用性较好的水流挟沙力公式,考虑泥沙粒径对挟沙力的影响,引入泥沙因子分析拟合瓯江口水流挟沙力公式。旨在揭示不同挟沙力公式之间的联系,以及河口海域水流挟沙力拟合过程,为进一步探讨河口海岸含沙量分布和悬浮泥沙输运提供思路。
Using the sediment data in the Oujiang Estuary, the formulas of sediment-carrying capacity were systematically compared. According to simultaneously averaged velocity and averaged suspended sediment concentration, and also considering the sediment factor, the sediment-carrying capacity in the Oujiang Estuary is discussed. It＇s concluded that the results of each formula trend to consistency, and there＇s only difference of value in practice. Applying the more reasonable sediment-carrying formula, and considering the grain size of sediment, the formula at the Oujiang Estuary was analyzed and fitted.
出处
《海洋科学》
CAS
CSCD
北大核心
2013年第5期71-76,共6页
Marine Sciences
基金
国家海洋公益性行业科研专项经费资助项目(201005036)
关键词
水流挟沙力
瓯江口
泥沙因子
当量粒径
ediment-carrying capacity
the Oujiang Estuary
sediment factor
equivalent particle size
