摘要
通过实验室人工降雨水槽试验,研究了降雨影响下浅层水流的阻力规律。根据试验中观察到的物理现象及对实测资料的分析,讨论了降雨对浅层水流特性的影响,提出了"伪层流"的概念,建立了不同流区的Darcy-Weisbach阻力系数∫的估算式。研究成果可用于坡面流计算及土壤侵蚀模拟等方面。
The hydraulic resistance of shallow water flow under the influence of rainfall has been investigated through the flume experiment with artificial rainfall. The effect of rainfall on the flow characteristics of shallow water has been anal- ysed, the concepture of 'False-laminar flow' has been suggested, and the formula of Darcy-weisbach resistance coefficient has been eastablished. The results of the study can be used in overland flow routing and soil erosion simulation.
出处
《水科学进展》
EI
CAS
CSCD
1996年第1期42-46,共5页
Advances in Water Science
关键词
浅层水流
水流阻力
降雨
坡面流
shallow water flow
overland flow
flow resistance
darcy-weisbach re-sistance coefficient
