YANG Dong,HOU Jing-ming,LI Dong-lai,et al.Numerical Simulation of Pipe Network Drainage Process Based on Diffusion Wave Method[J].China Water & Wastewater,2020,36(15 15):113-120.
Numerical Simulation of Pipe Network Drainage Process Based on Diffusion Wave Method
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
15 15
Page:
113-120
Column:
Date of publication:
2020-08-01
- Keywords:
- urban stormwater; drainage pipe network model; diffusion wave; hydrodynamic method; flood control and drainage
- Abstract:
- A set of hydrodynamic models of drainage pipe network was constructed based on diffusion wave method, and it was coupled with a developed high-resolution hydrodynamic model of urban surface. The model was verified by an ideal drainage pipe network and an actual drainage pipe network of a residential area in Fengxi New City of Xixian New Area, and the process of waterlogging caused by urban rainstorm was simulated. The model was highly consistent with discharge flow process simulated by SWMM in the ideal example. In the actual example and compared with the measured discharge flow process, the Nash-Sutcliffe coefficients of this model was 0.74, 0.72, 0.93 and 0.71, respectively, which were larger than those of SWMM model (0.62, 0.66, 0.73 and 0.65). When simulating the waterlogging process in the study area, the calculated data had a high degree of coincidence with the measured data, and the waterlogging points could be accurately simulated.
Last Update:
2020-08-01