摘要
文章通过对谢才-曼宁公式进行理论分析,并对照实际测流结果,得出结论认为在修建水坝后河流水动力条件显著改变,谢才-曼宁公式不适宜用来计算修建水坝后的河流各断面内的流速分布。在用累积流量法模拟计算水库型河流水动力水质时,应当用实际测流结果来绘制各计算断面累积流量曲线。
By analysis of Chezy-Manning equation in comparison with field inspection data, it was concluded that Chezy- Manning formula is not suitable for calculating average velocity of each vertical line in the section of riverway--type reservoirs due to the significant change of water dynamics situation. When accumulative flow method was used to model water quality or dynamics of river with dams, field velocity data should be available to calculate accumulated flow curve of various cross sections.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2008年第4期30-32,共3页
Environmental Science & Technology
基金
广东省自然科学基金资助项目(2006B36601006)
关键词
谢才-曼宁公式
累积流量法
河道型水库
Chezy-Manning formula
accumulative flow method
riverway-type reservoir
