摘要
本文从竖井进流水平旋转内消能泄水道影响环流空腔变化的因素出发,根据试验资料对其环流空腔直径的变化规律进行了系统地分析与研究。研究结果表明:这种泄水道环流空腔直径d0的变化规律有非常明确的分区特性,不同的分区对环流空腔直径d0影响因素是不同的。本文在该分析的基础上结合试验研究成果给出了d0的无因次综合变量函数的一般表达式、具体函数表达式和计算的经验公式。这些试验及分析成果对该种泄水道的水力特性的理论研究、分析计算和设计有较大的参考价值。
The authors studied and analyzed the changing rule of the encircle flow hollow diameter(d0) of a horizontal vortex in an internal energy dissipation tunnel with a inlet shaft by analyzing the interrelated influence factors based on experimental data.The results show that the changing rule of d0 has an obvious character of zoning.The main interrelated influencing factors are different in different flow zones.A general function of synthetically dimensionless variables and empirical formula were established according to the experimental results,which will be a good reference in hydraulic characteristic study,analysis and design of this type of tunnel.
出处
《水利学报》
EI
CSCD
北大核心
2003年第2期31-37,共7页
Journal of Hydraulic Engineering
关键词
坚井进流
水平旋转
空腔直径
因次分析
试验
高坎
Inlet shaft
encircle flow hollow diameter
internal energy dissipation tunnel
horizontal vortex
dimension analysis
