摘要
根据长江口的实测水流流速、悬沙含量及其级配资料,分析了它们变化的规律性,并用通用公式进行了验证。从研究结果可以看出:实测资料与现有理论和经验公式的拟合程度较好;在相对水深η=0.4处的流速、悬沙含量及其级配与垂线平均值基本一致,因而可用η=0.4处的流速u_(0.4)与含沙量S_(0.4)来计算单宽输沙率。
Based on the data obta.ined from the survey of the Yangtze River Estuary,the vertical distributions of velocity,suspended sediment and sediment particle gradation are studied. Varying regularity of the surveyed data is analyzed;and coherent extent for the existing theories and experimental formulas to the surveyed data is verified. The results demonstrate that the investigating data is accurate.
出处
《三峡大学学报（自然科学版）》
CAS
2003年第5期421-424,共4页
Journal of China Three Gorges University：Natural Sciences
基金
国家自然科学基金(50079003)
关键词
长江口
流速
含沙量
颗粒级配
垂线分布
Yangtze River Estuary
velocity profile
particle gradation
vertical suspended sediment distribution
