摘要
对修正RRL法进行改进,在修正RRL法中加入非线性水库方程来描述地面径流汇流过程,管道汇流采用能够考虑压力水头的非恒定流方程来代替修正RRL法中的简化无压管流模型,使得改进后的模型可以处理自由水面或压力管流问题。通过实例研究,验证了改进后的模型的可应用性和有效性。
It is intended to improve the urban rainfall-runoff model--Modified RRL Method herein ; for which the nonlinear reservoir storage equation is added to the Modified RRL Method to describe the concentration process of the overland runoff. The unsteady flow equation is used to replace the simplified free-surface pipe flow model in the Modified RRL Method, which makes it possible to address the pipe flow problem with free water surface or pressure head. The applicability and effectiveness of the improved model have been verified by a case study.
出处
《水利水电技术》
CSCD
北大核心
2007年第6期19-23,共5页
Water Resources and Hydropower Engineering
关键词
城市降雨径流
修正RRL法
模型改进
urban rainfall-runoff
Modified RRL Method
model improvement
