水利水电技术2017，Vol.48Issue(5)：1-5,13,6.DOI:10.13928/j.cnki.wrahe.2017.05.001
城市水文模型原理
Principles of urban hydrological model
摘要
Abstract
The urban hydrological process is markedly changed due to intensive human activities,while the scientific and precise simulation of runoff yield and confluence process within urban area is just a scientific basis for analyzing the mechanism of urban water issue.Based on a systematical dissection of the principle of the urban hydrological model,the complicated urban underlying surface is divided into six basis units,i.e.impervious unit,pervious unit,semi-pervious unit,pseudo-pervious unit,strong pervious unit and water-area unit,according to their previous characteristics,and then the hydrological characteristics of various urban hydrological responses are established.In accordance with Saint Venant equations and Navier-Strokes equations,the technical scheme for the hydrodynamic simulation on urban drainage network and river-lake water system is put forward herein.On the basis of coupling the precipitation-interception-evaporation-infiltration-runoff yield module,the surface confluence module,the drainage network confluence module and the one-dimension hydrodynamic module of water system,the runoff input for the hydrological model is taken as the input boundary for the one-dimension urban drainage network and river hydrodynamic model,thus the integration of the hydrological model with the one-dimension drainage network and river hydrodynamic model is realized.Integrating the unit hydrological models into the urban hydrological model system through the connection mode of the urban drainage network and river-lake water system,not only the deficiency of the existing simulation of urban storm water on hydrological mechanism can be made up,but a scientific basis can be also provided for both the urban drainage and waterlogging control and the construction of sponge city.关键词
城市水文学/水文模拟/水动力学/耦合集成/复杂下垫面/低影响开发Key words
urban hydrology/hydrological simulation/hydraulics/coupling/complex underlying surface/low impact development分类
建筑与水利引用本文复制引用
刘家宏,梅超,向晨瑶,邵薇薇,王浩,喻海军,吉梦喆..城市水文模型原理[J].水利水电技术,2017,48(5):1-5,13,6.基金项目
国家自然科学基金项目(51522907) （51522907）
国家重点研发计划课题(2016YFC0401401) （2016YFC0401401）
流域水循环模拟与调控国家重点实验室团队重点课题(2016ZY02) （2016ZY02）
