摘要
利用大量的实验室水槽和天然河道输沙资料 ,研究了各种水流强度指标与泥沙输沙强度的相关关系。结果表明 ,水流功率、平均流速、沙粒切应力能较好地预测输沙率而单位水流功率、佛汝德数、Velikanov参数则较好地预测输沙浓度。
The correlations between various flow intensity indexes and sediment transport were analyzed according to 3391 sets of data both from flume experiment and prototype observation. The result shows that the stream power, mean velocity and grain shear stress are effective in predicting sediment transport rate and the unit stream power, Froude number and Velikanov parameter are better indexes for predicting sediment concentration. Among them, the correlation coefficient between unit stream power and sediment concentration is the best.
出处
《水利学报》
EI
CSCD
北大核心
2003年第6期1-7,共7页
Journal of Hydraulic Engineering
关键词
水流强度指标
输沙强度
实测输沙资料
相关分析
单位水流功率
flow intensity
sediment transport intensity
correlation analysis
experiment and prototype data
unit stream power
