ZHANGYu-yuan,GONGYong-wei,HESong,et al.Factors Affecting Simulation Accuracy of Extensive Green Roof Retention Performance[J].China Water & Wastewater,2023,39(15):132-138.
Factors Affecting Simulation Accuracy of Extensive Green Roof Retention Performance
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第15期
Page:
132-138
Column:
Date of publication:
2023-08-01
- Keywords:
- extensive green roof; parameter value; retention performance; SWMM; model simulation accuracy
- Abstract:
- This paper simulated the extensive green roof devices with different structures based on rainfall and runoff monitoring data, and investigated the factors affecting the simulation accuracy, so as to analyze the simulation accuracy of extensive green roof model. The device structure, simulation continuity and rainfall characteristics were the main factors affecting the simulation accuracy of the retention performance. The model parameters of extensive green roof devices with different substrate types and scales could not be transferred to each other. The model parameters of devices with the same substrate type but different layer thickness could be transferred to each other, and better simulation accuracy could be obtained. The model parameters of the devices with different drainage layer materials had good transferability. The simulation accuracy of extensive green roof in continuous rainfall scenarios was better than that in single rainfall scenarios. In addition, rainfall duration had a certain influence on the simulation accuracy, and the longer rainfall duration improved the simulation accuracy.
Last Update:
2023-08-01